Free percentage calculator
Percent of a number, one number as a percent of another, percent change, and adding or taking off a percent. Runs in your browser; nothing you type is sent to us.
Using the Percentage calculator in three steps.
- Choose the kind of percentage question you have.
- Enter the two numbers.
- Read the answer.
About the Percentage calculator.
How do I find a percent of a number?
Multiply the number by the percent and divide by 100.
How is percent change worked out?
Subtract the old value from the new value, divide by the old value and multiply by 100.
What is the difference between percent and percentage points?
If a rate goes from 10 percent to 12 percent, it rises by 2 percentage points, which is a 20 percent increase.
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