Everyday & creator
Percentage calculator
Calculate a percentage of a number, percentage change, or what percent one number is of another. See the formula and result with clear inputs.
Free to useNo sign-upOn your device
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How to use it
- 01
Choose percentage of, percentage change, or what percent.
- 02
Enter the two numbers.
- 03
Calculate and review the formula alongside the result.
A few useful answers
How is percentage change calculated?
Subtract the original value from the new value, divide by the absolute original value, and multiply by 100.
Can the original value be zero?
A percentage change from zero is undefined. The tool explains this rather than returning infinity.