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Percentage Calculator
Calculate percentages: what is X% of Y, percentage increase/decrease
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Frequently Asked Questions
How do I calculate a percentage of a number?
To find X% of Y, multiply Y by X and divide by 100. For example, 25% of 200 is 200 × 25 / 100 = 50.
How do I calculate percentage change?
Percentage change is calculated as ((New Value - Old Value) / Old Value) × 100. A positive result means an increase, while a negative result means a decrease.
What is the difference between percentage and percentile?
A percentage is a fraction of 100 (e.g., 85% on a test means 85 out of 100). A percentile indicates relative standing — the 85th percentile means you scored higher than 85% of people.