Percentage Calculator
Four common percentage calculations, updated instantly as you type.
% ofis
30
Overview
Four common percentage calculations in one place: find a percentage of a number, work out what percentage one number is of another, calculate percentage change between two values, and apply a percentage increase or decrease.
Formulas
- X% of Y:
Y × (X / 100) - X is what % of Y:
(X / Y) × 100 - Percentage change from X to Y:
((Y − X) / X) × 100 - X increased/decreased by P%:
X × (1 ± P / 100)
How to use this calculator
- Pick the calculation you need from the four tabs.
- Enter the numbers.
- The result updates instantly as you type.
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