About Percentages
A percentage is a number expressed as a fraction of 100. It is often denoted using the percent sign, %.
Common Percentage Formulas
- To find x% of y: (x × y) ÷ 100
- To find what percent x is of y: (x ÷ y) × 100
- Percentage change: ((new - original) ÷ original) × 100
Percentages are used in many real-world applications including discounts, taxes, interest rates, statistics, and data analysis.