Calculate percentages, percentage increase/decrease, and more
Calculate a percentage of a given number
Find what percentage one number is of another number
Calculate the relative difference between two values
Calculate the percentage increase or decrease from one value to another
A percentage is a way of expressing a number as a fraction of 100. It is denoted using the percent sign (%). For example, 30% means 30 out of 100, or 30/100, which equals 0.3. Percentages are widely used in everyday life, from calculating discounts and taxes to understanding statistics and data analysis.
The basic percentage formula is:
where P = Part and W = Whole
Percentage difference measures the relative difference between two values:
where V₁ and V₂ are the two values
Percentage change calculates the increase or decrease from an old value to a new value:
where Vnew = New Value and Vold = Old Value
Here are several everyday situations that show how easy it is to use our percentage calculator.
These examples show how our percentage calculator can handle:
You can adapt any real-life situation to one of these patterns and let the calculator do the work for you.