Productivity tool
Percentage Calculator
Calculate percentages, ratios, and percentage change.
How to use Percentage Calculator
A percentage expresses a number as a part of 100. It is used in discounts, taxes, margins, growth rates, grades, statistics, and many everyday comparisons.
Basic idea
Percentage = Part / Whole x 100. Percentage change = Difference / Original value x 100.
How do I find a percentage of a number?
Multiply the number by the percentage, then divide by 100. For example, 20% of 150 is 30.