Percentage Calculator
Quickly calculate percentages, increases and decreases.
What is X% of Y?
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X is what percent of Y?
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Percentage change
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Add or subtract a percentage
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How to calculate percentages
Use the calculators above to find a percentage of a number, determine what percentage one number is of another, calculate percentage change, or increase and decrease values by a percentage.
Example
To find 20% of 150, multiply 150 by 0.20. The result is 30.
Percentage change
Percentage change compares a new value with an original value. Moving from 100 to 125 is a 25% increase, while moving from 100 to 75 is a 25% decrease.