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Percentage Calculator
Three ways to solve any percentage
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How to Calculate Percentages
A percentage is a number expressed as a fraction of 100. This calculator handles three common percentage calculations: finding a percentage of a number, finding what percent one number is of another, and calculating percentage change.
Frequently Asked Questions
How do I find a percentage of a number?
Multiply the number by the percentage divided by 100. For example, 15% of 200 = 200 x 0.15 = 30.
How do I calculate percentage change?
Percentage change = ((New Value - Old Value) / Old Value) x 100. A positive result means increase, negative means decrease.
What is the formula for finding what percent X is of Y?
Divide X by Y and multiply by 100. For example: 30 is what % of 200? Answer: (30/200) x 100 = 15%.