Percentage calculator
X% of Y
% of
X is what % of Y
is what % of
Percent change from X to Y
to
What is Percentage calculator?
Covers the three percentage questions people actually get stuck on: what's X% of Y, what percent is X of Y, and what's the percent change from X to Y — each a different formula that's easy to mix up under pressure.
How to use it
Enter values into whichever of the three calculators matches your question; results update live.
Example
20% of 150 = 30
30 is what % of 150? = 20%
Percent change from 80 to 100 = +25%