Percentage Calculator
Calculate a percentage of a value, a proportion, a percentage change, or an increase or decrease.
Workspace
—
How to use this tool
Choose the calculation, enter both numbers and read the result with its formula.
What to know
Percent change divides by the starting value. A zero starting value has no defined percentage change.
Frequently asked questions
How do I use Percentage Calculator?
Choose the calculation, enter both numbers and read the result with its formula.
What should I check before using the result?
Percent change divides by the starting value. A zero starting value has no defined percentage change.
Is an account required?
No. This tool is free and the calculation takes place in your browser.