Percentages calculators
The math everyone learned once and nobody remembers which way round it goes.
Percent of a number, percentage change and difference, reverse percentages, fractions and percentage points.
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Percentage of a Number Calculator
Find X% of any number, like 20% of 85. -
Percentage Change Calculator
See how much a value went up or down, in percent. e.g. Percentage change = 25% -
What Percent Is X of Y Calculator
Find what percentage one number is of another. -
Percentage Increase and Decrease Calculator
Add or take away a percentage from any number. e.g. New value = 2,625 -
Reverse Percentage Calculator
Find the original price before a discount, tax or increase. e.g. Original amount = 80 -
Percentage Difference Calculator
How far apart two numbers are, in percent, with neither one as the starting point. e.g. Percentage difference = 40% -
Percent Error Calculator
How far a measured or estimated value is from the true one, as a percentage. e.g. Percent error = 2.1407% -
Percent, Decimal and Fraction Converter
Turn a fraction into a percent or decimal, and back, in one step. e.g. As a percentage = 37.5% -
Percentage Points Calculator
Compare two percentages the right way: points and relative change. e.g. Difference = 1 percentage points
