Percentage Calculator
Every percentage question in one place, with the formula shown.
Answer
72
15% of 480 is 72.
15% × 480 = (15 ÷ 100) × 480
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About the Percentage Calculator
Work out what X% of a number is, what percentage one number is of another, and percentage increase or decrease between two values. Each answer shows the formula so you can check the working.
How to use it
- 1Pick the kind of percentage question you have.
- 2Type the two numbers.
- 3Read the answer and the formula underneath.
What you get
- What is X% of Y
- X is what percent of Y
- Percentage increase and decrease
- Formula displayed with every result
- Instant, no page reload
Frequently asked questions
How do I calculate a percentage increase?
Subtract the old value from the new value, divide by the old value, then multiply by 100. Going from 80 to 100 is (100 − 80) / 80 × 100 = 25% increase.
Why is a 50% rise followed by a 50% fall not back to the start?
Because each percentage applies to a different base. 100 rises to 150, then 50% of 150 is 75 — so you land at 75, not 100.
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