Percentage Calculator
Work out what X% of a number is, and what one number is as a percent of another.
Result
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Results update as you type.
About this calculator
A percentage calculator handles the everyday percentage questions: what is X percent of a value, what percent one number is of another, and the percentage change between two numbers. Pick the question and fill in the two boxes.
Frequently asked questions
How do I find a percentage of a number?
Multiply the number by the percent and divide by 100. For example 15% of 200 is 200 × 15 ÷ 100 = 30.
How do I calculate percentage change?
Subtract the old value from the new value, divide by the old value, and multiply by 100. A rise from 200 to 260 is (260−200)/200 × 100 = 30%.
Results are estimates for general guidance only, not financial, medical or tax advice.