Percentage Calculator
Calculate percentages three ways: find X% of a number, determine what percentage X is of Y, or compute the percentage change between two values.
—
Result
Recent Calculations
What Is Percentage?
A percentage expresses a number as a fraction of 100. It's used to compare proportions, calculate discounts, tips, grades, and more.
Formula
Percentage = (Value / Total) × 100Example
75 out of 200 is 37.5%. To find 25% of 80: 80 × 0.25 = 20.
Frequently Asked Questions
How do I calculate percentage of a number?
Multiply the number by the percentage divided by 100. For example, 25% of 80 = 80 × 25/100 = 20.
How do I find what percentage one number is of another?
Divide the part by the whole and multiply by 100. For example, 30 is what percent of 150? (30/150) × 100 = 20%.