Percentage Calculator

Calculate percentages in five ways: X% of Y, what percent X is of Y, add or subtract a percentage, and percent change between two numbers. Useful for discounts, tips, interest rates, grade scores, and growth rates.

Your Result

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ResultWhat it means?
ResultThe calculation produced a finite numeric result.
No resultInputs are out of range or division by zero occurred.

How it works

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Switch the mode to choose which percentage operation to run. All values are real numbers; the result updates instantly.