Percentage Calculator
Compute percentages three ways: X% of Y, what percent X is of Y, and the relative change between two values, with step-by-step workings. All calculations run in your browser.
Calculate X% of Y, what percent X is of Y, and percentage change between two values.
Result appears here.
Output ready, 37 B
How to use Percentage Calculator
- Choose a calculation mode.
- Enter the numbers requested.
- Read the result and the step-by-step workings.
Frequently asked questions
Which modes are supported?
X% of Y, X as a percentage of Y, and percentage change between two values.
Can I calculate a decrease?
Yes. Percentage change handles both increases and decreases.
What happens when dividing by zero?
The tool shows an error instead of producing an invalid result.
Is anything uploaded?
No. All calculations stay on your device.
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