Percentage Calculator
Calculate percentages, find what percentage one number is of another, and compute percentage change between two values.
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What is X% of Y?
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X is what % of Y?
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Percentage change from X to Y
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Increase / decrease X by Y%
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Frequently Asked Questions
How do I calculate X% of a number?
Multiply the number by X and divide by 100. For example, 20% of 150 = 150 × 20 ÷ 100 = 30.
How do I calculate percentage change?
Subtract the original value from the new value, divide by the original value, then multiply by 100. A positive result is an increase; negative is a decrease.
What is the difference between percentage and percentage points?
Percentage points measure the arithmetic difference between two percentages. If a rate rises from 10% to 15%, that is a 5 percentage-point increase, but a 50% increase in the rate itself.