ecech.
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E-commerce & Pricing Tools

Landed cost, marketplace fees, break-even discounting and ad profitability — pricing tools that subtract before they add.

Built for Amazon/Etsy/Shopify sellers, dropshippers, buyers. 156 tools published.

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3PL Break-Even

Compare fixed overhead with per-order handling to locate the cost crossover.

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Accessorial Charge Impact

Allocate fixed and per-shipment surcharges across units and base freight.

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Account Hold Cost

Estimate the service cost attached to an unpaid subscription cohort and hold duration.

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Affiliate Payout

Apply commission only to retained sales and expose the cost of a refund holdback policy.

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AI App Margin

Subtract store commission, model usage and support before scaling acquisition.

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AI Catalog Enrichment

Multiply SKU-field combinations before adding human verification.

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AI Description Time

Compare manual and assisted minutes across a full product catalog.

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AI Localization Cost

Separate automated word cost from mandatory human market review.

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AI Personalization Floor

Work backward from incremental platform cost to a required conversion-rate lift.

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AI Search Recovery

Connect recovered no-result searches with conversion contribution rather than raw search count.

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AI Support Savings

Apply deflection only to eligible tickets and compare full handling costs.

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Amazon FBA Calculator

Referral fee, fulfilment fee by size tier, monthly storage, returns and ad spend — subtracted in the order Amazon actually applies them, down to profit per unit.

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Annual Plan Discount

Compare twelve monthly payments with the annual checkout price on the same basis.

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App Ad Revenue

Separate requested impressions from fill rate before applying an editable eCPM.

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App CPI Payback

Combine cost per install with payer conversion and monthly net proceeds.

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App Install Gap

Turn a target store conversion rate into the extra installs needed from current impressions.

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App Localization Budget

Multiply translatable words by locales and add review before estimating payback.

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App Paid Conversion

Connect installs, trial starts and billing value to a revenue target.

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App Payer Gap

Translate a target payer conversion rate into an absolute user gap.

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App Pre-Order Revenue

Apply cancellation and proceeds assumptions to the pre-order count before launch.

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App Price Increase

Compare net monthly proceeds before and after a price change with an editable churn response.

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App Rating Recovery

Use rating math to set expectations without promising or incentivizing reviews.

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App Refund Impact

Translate an observed refund percentage into revenue exposure plus editable handling overhead.

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App Refund Reserve

Create an editable cash-planning reserve without treating reported gross billing as fully available.

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App Screenshot Budget

Multiply locales, device sets and screens before approving design and localization cost.

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App Store Commission

Model standard, qualifying subscription and Small Business rates with editable taxes, refunds and subscriber retention.

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App Subscription Funnel

Model first-period revenue without pretending every install becomes a subscriber.

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App Subscription LTV

Apply net proceeds and service cost before capitalizing recurring margin.

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App Test Sample Size

Estimate total impressions needed before judging a product-page treatment.

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Backorder Clearance

Translate backlog units and net daily processing capacity into a customer-facing recovery date input.

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Barcode Generator

It exists so a misread fails instead of ringing up the wrong product. Type twelve digits and the thirteenth is calculated for you.

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Bin Location Labels

Normalize zone and numeric segments into a deterministic fixed-width location code.

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BOGO Effective Discount

Compare multi-buy mechanics on one effective-discount basis before approving creative.

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Break-Even Discount Depth

Convert cost and protected profit into a maximum discount instead of choosing a promotion by instinct.

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Budget Pacing

Compare cumulative planned and actual spend instead of relying on one daily average.

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Bundle Attach Profit

Connect bundle attach rate with price and incremental cost rather than judging uptake alone.

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Bundle Contribution

Subtract component, packaging, payment and shipping costs from one bundle price.

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CAC Payback Orders

Convert acquisition cost and order contribution into a payback order count.

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Campaign Daily Pace

Compare required remaining spend with the average pace already observed.

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Cart Recovery Revenue

Turn abandoned checkouts and recovery conversion into contribution, not vanity sales.

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Carton Shelf Space

Turn carton quantity and storage orientation into linear shelf demand.

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Channel Price Parity

Compare merchandise, shipping and mandatory charges on the same checkout basis.

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Chargeback True Cost

Total the cash loss hidden behind a reversed payment and use it as the threshold for prevention spend.

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Clearance Pace

Translate an end-of-window sell-through target into weekly incremental units.

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Container Load Planner

Place box groups into editable container dimensions and compare overflow.

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Container Utilization

Compare carton cube with usable container volume after a packing-factor allowance.

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Cost Per Page

Rated yields assume 5% coverage — about a business letter. Anything denser costs more than the box says, and the printer price is the smallest number in the sum.

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Coupon Campaign Cost

Apply expected redemption only to eligible orders and include a fixed campaign setup cost.

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Cross-Border Margin

Combine product, freight, duty, marketplace and FX costs into one landed margin.

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Cross-Border Payout

Stack processor percentage, FX spread and fixed payout charges to estimate the bank deposit.

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Cycle Count Coverage

Convert SKU coverage and daily count capacity into a full-cycle duration.

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Cycle Count Schedule

Distribute required SKU counts across available workdays without hiding capacity shortfalls.

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Damage Write-Off

Combine landed inventory value with unavoidable disposal or handling cost.

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Delivery Buffer

Accumulate user-measured leg variability and fixed facility delay without using live traffic.

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Delivery Promise

Add operational and risk days before advertising an arrival promise.

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DIM Weight

Carriers bill the greater of actual and dimensional weight, and dimensional weight is the size of the box. You are paying to ship air.

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Discount Calculator

Two vouchers, a sale price and tax do not simply add up. Stack them in the order the till applies them and see the real final price and the true total percentage off.

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Discount Leakage

Separate planned promotional discount from excess discount actually granted.

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Dropship Max CPA

Subtract supplier, delivery and payment costs before deciding what an ad conversion is worth.

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Dunning Recovery

Size the recoverable subscription revenue behind a failed-payment cohort.

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Duplicate SKU Checker

Audit a SKU master locally with exact or normalized comparison.

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eBay Fee & Profit

Model an editable category rate instead of applying one eBay percentage to every item.

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Economic Order Quantity

Estimate the classic order-size crossover while keeping demand and cost assumptions editable.

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Etsy Break-Even ROAS

Subtract product cost, Etsy transaction, listing and payment fees before deciding whether an ad campaign is profitable.

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Etsy Payout

Separate Etsy payout from profit by modeling listing, transaction, payment, advertising, product and shipping costs.

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Experiment Brief

Turn four explicit decisions into a reviewable pre-launch brief without AI-generated claims.

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FBA Break-Even CPC

Turn contribution margin and conversion rate into a maximum CPC, target CPC and break-even ACoS without confusing revenue with profit.

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Flash Sale Margin

Compare sale price, incremental unit demand and unit cost before committing inventory.

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Free Shipping Floor

Estimate the extra merchandise revenue needed to fund shipping while preserving a target margin buffer.

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Freight Capital Cost

Put a dollar value on inventory cash tied up during different transit times.

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Freight Density

Convert pallet dimensions and total weight into density without guessing a freight class.

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Fuel Surcharge Impact

Apply an editable surcharge only to the eligible transport charge and expose the monthly margin impact.

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Funnel Drop-Off Cost

Put each stage loss on the downstream conversion and order-value denominator.

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Gift Card Liability

Separate expected breakage from the outstanding obligation instead of treating every sale as earned revenue.

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Grace Recovery Value

Size the renewal revenue retained when eligible failed billings recover during grace.

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IAP Net Revenue

Turn paying users and purchase frequency into estimated developer proceeds.

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Import Landed Cost

Stack customs value, duty and import tax instead of applying every rate to the invoice alone.

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Incremental ROAS

Separate incremental revenue from revenue that the control would have produced anyway.

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Inventory Aging Report

Turn receipt cohorts into reviewable age buckets with row-level errors.

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Inventory Carrying Cost

Apply capital, storage, shrink and obsolescence rates to the inventory actually held.

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Inventory CSV Validator

Catch structural inventory CSV failures before a marketplace or WMS rejects the file.

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Inventory Days on Hand

Normalize units on hand against the sales pace from a representative period.

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Kitting Capacity

Turn productive labor and a measured kit rate into same-day bundle capacity.

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Landed Cost per Unit

Allocate freight, insurance and duty across the shipment before setting a selling price.

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Lead-Time Buffer

Expose the delay hidden by planning only around an average supplier lead time.

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Listing Capacity

Convert catalog staffing and handling time into launch-ready listing throughput.

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Listing CSV Formatter

Reorder and rename local product columns without pretending one marketplace schema is permanent.

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Listing Pack Size

Convert packs, items per pack and item size into total listed quantity.

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MAP Price Floor

Translate an allowed discount into a price floor and compare campaigns before publishing.

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Marketplace Reserve

Put a capital cost on sales proceeds held back by a marketplace.

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Markup vs Margin

Markup divides by cost, margin divides by price. Wanting 30% margin and adding 30% to cost leaves 12.86 per unit behind.

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Migration Support

Translate a migrated subscriber cohort into a support staffing scenario.

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MOQ Cash Need

Combine supplier deposit and upfront freight instead of valuing only total inventory.

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Offer Break-Even

Compare campaign setup cost with contribution retained from each incremental redemption.

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Order Exception Cost

Combine investigation labor and expected reship cost for exception work.

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Order Lines to Labor

Translate line counts and touch time into workload hours and staffing.

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Package Allocation

Compare package count forced by weight with package count forced by volume.

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Packaging Cost per Order

Total the small packaging components that disappear inside a broad fulfilment estimate.

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Packaging Reorder Point

Protect fulfillment from running out of a low-cost but essential shipping supply.

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Packaging Void Fill

Measure geometric void and apply an explicit target fill share rather than claiming optimal packing.

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Pallet Capacity

Test both carton orientations before applying layers and a practical packing factor.

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Pallets to Trailer Length

Turn pallet positions into floor rows under an explicit side-by-side layout.

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Pause Cash Flow

Estimate near-term billing deferred by a paused subscriber cohort.

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Payout to Net Margin

Separate settlement cash from product, fulfillment and overhead cost.

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Payout Working Capital

Estimate the cost-side cash bridge created by a payment payout delay.

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Pick and Pack Labor

Turn observed pick and packing time into labor cost per shipped order.

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Picking Capacity

Translate pickers, paid hours and observed speed into daily fulfillment capacity.

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Play Pre-Reg Installs

Apply device availability and expected conversion to the active pre-registration audience.

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POD Profit

Test one design's real unit contribution before spending time or ad budget promoting it.

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Points Liability

Apply expected redemption and fulfillment cost to outstanding point value.

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Preorder Capacity Gap

Compare the preorder queue with the labor capacity available before the promised cutoff.

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Preorder Funding Gap

Compare customer deposits with production and other upfront launch costs.

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Price Consent Exposure

Model subscribers who may not consent to an App Store subscription price increase.

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Price Elasticity

Relate percentage quantity change to percentage price change while keeping the limitations visible.

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Price Index

Include shipping before indexing your basket against a like-for-like competitor.

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Pricing Guardrails

Calculate the lowest price that preserves an editable contribution margin.

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Processor Fees

The fixed fee is the same whatever the order is worth, so the advertised percentage is only ever reached at the top end.

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Product Photo Capacity

Translate shoot capacity and required images into complete product sets.

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Push Opt-In Funnel

Connect permission prompts, acceptance, reachable devices and campaign click rate.

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Quarantine Cash

Value stock that cannot be sold while inspection, compliance or supplier decisions are pending.

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Receiving Dock Capacity

Translate doors, appointment time and utilization into loads and pallets per day.

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Receiving Labor

Turn inbound units and an observed receiving rate into a staffing requirement.

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Refund Workload

Convert refund volume and handling time into an operations workload.

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Reorder Point

Combine lead-time demand with an explicit safety-stock coverage window.

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Representment ROI

Compare expected recovered dispute value with the labor needed to prepare evidence.

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Reseller Break-Even

Turn an upfront inventory commitment into the unit count required to recover it.

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Return Inspection

Convert arriving return volume into inspect, grade and disposition labor.

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Return Rate Impact

Apply lost contribution and return handling to an entire month instead of treating returns as isolated refunds.

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Return-Adjusted Payout

Apply expected returns and marketplace fees to gross order value.

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Returnless Refund

Compare reverse-logistics cost with the recoverable value of a returned item.

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Returns Inspection Labor

Separate universal inspection time from restock, refurbish and disposal handling paths.

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Reverse Logistics Cost

Combine return volume, inbound labels, inspection and salvage instead of counting refunds alone.

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Reverse Marketplace Fee

Solve for listing price after marketplace commission, payment percentage and fixed per-order fees instead of guessing and recalculating.

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Review Response Load

Convert daily review volume and response coverage into monthly support hours.

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Review Summary Audit

Apply audit sampling to summary volume and reserve time for flagged cases.

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Shipping Claim ROI

Compare expected approved claim value with the labor required to document and submit cases.

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Shipping Insurance

Turn loss probability and unrecovered value into an expected-cost threshold for insurance.

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Shopify Payment Fees

See the fee on one order, effective percentage on small baskets and the extra layer charged when a third-party provider is used.

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Shopify Plan Break-Even

Compare the extra subscription cost with the transaction-fee percentage saved at higher sales.

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Stockout Lost Sales

Translate unavailable selling days into missed orders and contribution margin.

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Storage Cost per SKU

Translate occupied volume and storage time into a comparable SKU-level carrying cost.

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Subscription Box Economics

Model contribution per shipment, monthly operating profit, payback time and churn-adjusted customer value in one view.

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Supplier Defect Cost

Combine defective units with landed value and handling cost rather than counting units alone.

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Support Backlog

Use net ticket clearance after new arrivals instead of an unrealistic zero-arrival forecast.

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Support Staffing

Convert ticket demand, handling time and shrinkage into staffed FTE capacity.

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Surcharge Margin Loss

Apply a carrier surcharge across orders after the customer pass-through share.

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Sustainable Price

Solve price from costs and contribution target instead of marking up one cost line.

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TikTok Shop Profit

Model the entire order waterfall with editable market and category fees instead of treating creator commission as the only acquisition cost.

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Trial Cohort Revenue

Apply conversion and net proceeds to one completed free-trial cohort.

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Unit Price Compare

It happens often enough to have a name — the quantity surcharge. Convert everything to one unit and the shelf stops being able to hide it.

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UTM Naming Generator

Normalize explicit source, medium and campaign labels into one reproducible convention.

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Vehicle Expense CSV

Normalize dates and categories while retaining source amount, currency and row provenance.

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Walmart Seller Profit

Use an editable category referral rate with fulfilment and landed cost to test a listing before launch.

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Weekend Backlog

Combine starting backlog and incoming orders into a clearance plan.

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Wholesale Order Profit

Stack quantity, wholesale discount, unit cost and order freight in one quote check.

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Wholesale Price Ladder

Work forward through distributor and retailer margins without confusing margin with markup.