Percentage
Calculate percentages, percent change, and percent difference
How to use Percentage
- 1Pick the percentage operation you need (X% of Y, X is what % of Y, or increase/decrease).
- 2Enter the numbers into the input fields.
- 3Read the result instantly below the inputs.
How Percentage Calculations Work
Part = (Percentage / 100) × WholeA percentage is simply a fraction of 100. Calculating 'X% of Y' means multiplying Y by X divided by 100.
Percentages are used daily for discounts, tax, tips, interest rates, and comparing changes between two values.
Frequently asked questions
How do I find what percent one number is of another?
Divide the part by the whole and multiply by 100. For example, 25 of 200 is (25 / 200) × 100 = 12.5%.
How do I calculate a percentage increase?
Subtract the original from the new value, divide by the original, then multiply by 100.
Can I use it for discounts?
Yes. To find a sale price after a discount, calculate the percent of the original price and subtract it.