Free Percentage Calculator
Calculate a percentage of a number, compare a value to a total, or measure percentage change.
Helpful note
Percentage results depend on which value is treated as the original. Check the selected calculation mode before using the result.
About Percentage Calculator
Use common percentage calculations for study, shopping, discounts, marks and everyday number checks.
How to use this tool
- Choose the calculation you need.
- Enter the required values.
- Read the percentage result.
Frequently asked questions
Multiply the number by the percentage and divide by 100.
Subtract the original value from the new value, divide by the original value, and multiply by 100. The original value must not be zero.