How to calculate percentages
A percentage represents a portion of a number out of 100. For example, 20% means 20 out of 100. You can calculate percentages by multiplying the number by the percentage and dividing by 100.
Example
If you want to find 15% of 200, you multiply 200 × 0.15 = 30.
Common uses
- Discount calculations
- Salary increases
- Financial analysis
- Statistics and data
Frequently Asked Questions
How do I calculate a percentage?
Multiply the number by the percentage and divide by 100.
How do I calculate percentage increase?
Increase = original value × (1 + percentage/100).
How do I calculate percentage decrease?
Decrease = original value × (1 - percentage/100).