ecech.

Tools tagged #percentage

Every ecech. tool tagged percentage: 3 free calculators and utilities across Math & Statistics. No signup, runs in your browser.

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Percentage Calc

Three different questions share the word percentage, and a fall is never undone by a rise of the same size.

Math
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Percentage Change

Four related questions in one place — change between two numbers, apply a percentage, find the original, and see the working written out so you can check it.

Math
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Reverse Percentage

The sale price is £80 after 20% off — what was it before? Not £96. Adding a percentage back is not the same as taking it off, and this shows why.

Math

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