Percentage Calculator
Calculate percentages instantly with four different modes. Visual charts, formula display, and calculation history included.
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is ?% of
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How Percentage Calculations Work
X% of Y
Multiply the number by the percentage divided by 100. Formula: (X / 100) * Y
X is what % of Y
Divide the part by the whole and multiply by 100. Formula: (X / Y) * 100
Percentage Change
Find the difference, divide by the original, multiply by 100. Formula: ((New - Old) / |Old|) * 100
Increase / Decrease
Calculate the delta and add or subtract from original. Formula: X +/- (X * P/100)
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