Percentage Calculator
Work out a percentage of a number, what percent one value is of another, or the percentage increase or decrease between two numbers.
Enter values above.
How to calculate a percentage
- Choose the type of percentage calculation you need.
- Type in your two numbers.
- Read the answer instantly — it updates as you type.
Frequently asked questions
Does this update automatically?
Yes — the result updates instantly as you type, no button to press.
Can I calculate a percentage increase or decrease?
Yes — use the “% change” tab and enter the starting and ending values.