Free Percentage Calculator
Three ready calculators: percent of a number, percent of a total, and change.
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How to do it
- 1Choose your settings
Fill in the details or pick the options you need.
- 2See the result
The preview updates right away as you change things.
- 3Download or save it
Save the result to your device. Nothing is sent to or stored on a server.
About this tool
Quickly work out discounts, tips, marks and growth. Find a percentage of a number, find what percent one number is of another, or find the percentage change between two numbers. The answers update as you type.
Frequently asked questions
How do I work out a discount?
Use the first box: for 20% off 150, type 20 and 150 to get 30, then subtract it from the price.
How is percentage change worked out?
It is the new value minus the old value, divided by the old value, times 100.
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