How to Use This Tool
Separate new subscriptions from expected losses before extending a straight-line forecast. Calculate a YouTube subscriber projection from current subscribers, monthly additions, months and monthly loss rate.
The failure Subscriber Projection is designed to catch
Gross additions overstate growth when regular unsubscribes or account removals are ignored, especially across a long projection. The boundary is the job stated in Project a Subscriber Count From Net Monthly Adds and Churn; Subscriber Projection is not intended to score or transform a different workflow.
The Subscriber Projection input contract
The fields used for this specific operation are Current subscribers, New subscribers per month, Projection months, Monthly loss rate %. Keep the source values beside the Subscriber Projection result, because replacing the original would remove the evidence needed to reproduce or reverse the operation.
- For Subscriber Projection, Current subscribers starts at
10000in the worked case; replace that example with the matching source value. - For Subscriber Projection, New subscribers per month starts at
500in the worked case; replace that example with the matching source value. - For Subscriber Projection, Projection months starts at
12in the worked case; replace that example with the matching source value. - For Subscriber Projection, Monthly loss rate % starts at
2in the worked case; replace that example with the matching source value.
Worked result for Subscriber Projection
The executable case called Default decision scenario expects out: 15,880.0. Verify that observation before entering real material, and then change one Subscriber Projection field at a time so an unexpected direction or formatting change can be traced to a specific input.
Reading the Subscriber Projection output
It combines current subscribers, new subscribers per month, projection months and monthly loss rate % into one decision result using the formula explained on the page. Apply that answer only when Current subscribers, New subscribers per month, Projection months, Monthly loss rate % describe the same scope and format as the worked operation. If the source uses different units, quoting, nesting, timing or account rules, a plausible-looking Subscriber Projection output is not sufficient validation.
Assumptions attached to Subscriber Projection
- Subscriber Projection assumes that all inputs describe the same unit or reporting period unless the field explicitly says otherwise.
- Subscriber Projection assumes that the model includes only the four visible inputs and does not infer hidden platform charges.
If one of these Subscriber Projection assumptions is false, keep the result as a diagnostic rather than production or decision data, and choose an implementation that explicitly supports the missing rule.
Evidence maintained for Subscriber Projection
The recorded reference is YouTube Help — creator resources. Reopen that source when the definition, format, fee or policy behind Subscriber Projection changes; private configuration and downstream acceptance still have to be checked in the user's own system.
Where Subscriber Projection runs
The named operation executes in browser JavaScript without an ecech calculation API. For Subscriber Projection, local execution reduces transmission but does not control browser extensions, device security or the destination where the result is pasted, so sensitive inputs still require the user's normal handling rules.
Sources & assumptions
Tool Spec v2 · verified 2026-08-19. Platform rules and fees can change; the editable inputs remain authoritative for your account.
Official references
- YouTube Help — creator resources (checked 2026-08-19)
Model assumptions
- All inputs describe the same unit or reporting period unless the field explicitly says otherwise.
- The model includes only the four visible inputs and does not infer hidden platform charges.
