Percentage Calculator

Three ways to work with percentages.

What is X% of Y?

% of = —

X is what % of Y?

is what % of = —

Percentage change from X to Y

→ = —

About the Percentage Calculator

This percentage calculator handles three common percentage calculations at once: finding what percentage one number is of another, calculating a percentage of a value, and determining the percentage change between two numbers. All three results update live as you type.

Common uses include calculating a discount price, working out a VAT amount, figuring out what grade percentage a test score represents, and comparing metrics to see percentage growth or decline. The percentage change calculator shows whether the change is positive (increase) or negative (decrease).