Percentage Calculator
Percentages, increases, decreases, and differences.
Processed locally in your browser — your files never leave your device.
How to use
- 1Pick a mode (of, increase, decrease, or what-percent).
- 2Enter the numbers and read the result.
Four modes: X% of a number, percentage increase/decrease, and what-percentage one number is of another. Results update instantly.
Frequently asked questions
What is the difference between increase and difference?
Increase applies a percent change to a base value. Difference compares two values symmetrically as a percent of their average.