Percentage calculator
Find X% of a number, what percentage one value is of another, the percentage change between two numbers and prices after a markup or discount.
How it works
Five calculators in one: what is X% of Y, what percent X is of Y, how much a value changed from A to B (a price or sales metric, for example), the price after an increase and the price after a discount.
Type the numbers and the result appears instantly, with the formula used so you can check or explain it.
Frequently asked questions
How is percentage change calculated?
Subtract the initial value from the final value, divide by the initial value and multiply by 100. From 80 to 100 is (100 - 80) / 80 × 100 = 25%.
Do a 20% increase and a 20% discount cancel out?
No. 100 + 20% = 120, and 120 - 20% = 96. The discount is applied to a higher value.
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