Percentage Calculator

Calculate what percentage one number is of another, find a percentage of a value, or work out percentage increase and decrease — instantly, below.

Percentage (%)

Of value

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Value X

Value Y

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From

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How to Calculate Percentages Manually

Understanding percentages is simple when you break down the mathematical formulas:

Find X% of Y: Multiply the percentage by the value, then divide by 100.
Formula: (P × V) / 100
Find what percentage X is of Y: Divide X by Y, then multiply the result by 100.
Formula: (X / Y) × 100
Calculate Percentage Change: Subtract the starting value from the new value, divide by the starting value, and multiply by 100.
Formula: ((New - Old) / Old) × 100