Math & Conversion
Percentage Calculator
Three modes: find X% of Y, X is what % of Y, and percentage change from A to B.
Plug in some numbers —
we'll crunch.
How to use
- 1Select the mode that matches your question.
- 2Enter the two numbers.
- 3'What is X% of Y?' — finds a percentage of a number (e.g. 15% of 200 = 30).
- 4'X is what % of Y?' — finds what percentage one number is of another.
- 5'% change from A to B' — calculates percentage increase or decrease.
Frequently asked questions
About this calculator
Three modes: find X% of Y, X is what % of Y, and percentage change from A to B.