Percentage Calculator
Three common percentage calculations in one tool: find a percentage of a number, find what percent one number is of another, or find the percentage change between two numbers.
Frequently Asked Questions
How do I find what percentage one number is of another?
Use the “X is what % of Y” mode — for example, to find what percent 30 is of 200, enter 30 and 200 to get 15%.
How is percentage increase or decrease calculated?
As the difference between the two numbers, divided by the original (starting) number, shown as a percentage — a positive result is an increase, negative is a decrease.