Calculate a percentage of a number, find what percentage one number is of another, or measure percentage change. Results are calculated locally in your browser.
15% of 240
Updated
Multiply the percentage by the number, then divide by 100. For example, 15% of 240 is 15 × 240 ÷ 100 = 36.
Use this when you know the rate and the whole amount. Enter 15 and 240 in the first calculator mode to check the result. The calculation is mathematical only; tax, fees or rounding rules may change a real-world total.
Divide the part by the total, then multiply by 100. If 36 is part of 240, 36 ÷ 240 × 100 = 15%.
The total must not be zero. This is useful for completion rates, marks and proportions, provided both values use the same unit.
Percentage change is (new value − original value) ÷ original value × 100.
A move from 80 to 100 is a 25% increase because 20 ÷ 80 × 100 = 25. A percentage change is not the same as percentage points when the values are already percentages. Use the original value as the denominator, not the new value. When the original is zero, a percentage change is undefined, so this calculator asks for a non-zero original value.
Multiply 240 by 15 and divide by 100. The result is 36.
Subtract the original value from the new value, divide by the original value, then multiply by 100.
Percentage change compares relative size. Percentage points are the direct difference between two percentages.