Percentage Calculator
Calculate percentages instantly: three everyday percentage questions, answered as you type.
- Runs on your device
- No watermark
- Free, no signup needed
- Available offline
How to use it
- Enter your numbers.
- Results update instantly.
- Adjust any value to compare scenarios.
Questions
How do I calculate a percentage of a number?
Multiply the number by the percentage and divide by 100. For example, 20% of 150 is 150 × 20 ÷ 100 = 30.
How is percentage change calculated?
(New − Original) ÷ Original × 100. Going from 80 to 100 is a 25% increase; going from 100 to 80 is a 20% decrease.
How do I work out what percent one number is of another?
Divide the part by the total and multiply by 100. 30 out of 120 is 30 ÷ 120 × 100 = 25%.
What is the difference between percent and percentage points?
A rate going from 4% to 5% rises by 1 percentage point, but that is a 25% increase. Use percentage change for prices and amounts.
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