Percentages come up everywhere — discounts, marks, interest and tips. This simple tool finds a percentage of any value and also tells you what one number is as a percentage of another.
The formula
To take X percent of a value Y, turn the percentage into a fraction and multiply:
Result = X ÷ 100 × Y
The tool also shows the reverse view, X ÷ Y × 100, which is what X is as a percentage of Y.
For example, for 15% of 2000:
- Result = 15 ÷ 100 × 2000 = 300
- And 15 as a percentage of 2000 = 15 ÷ 2000 × 100 = 0.75%
When this helps
- Shopping — work out a discount amount from a percentage off.
- Everyday maths — compute a tip, a share or an interest amount quickly.
- Quick checks — confirm what a small number is as a percentage of a larger one.
A caveat on the two readings
Keep the two outputs distinct: the first is a percentage of a value (15% of 2000 = 300), while the second is one value as a percentage of another (15 out of 2000 = 0.75%). They answer different questions, so pick the line that matches yours. For exam scores specifically, the marks percentage calculator applies the same idea to obtained and total marks, and the CGPA to percentage calculator handles grade conversions. Explore the CodeBegun programs to build job-ready skills.