Percentage Calculator
Calculate percentages with multiple modes: find X% of Y, determine what percent X is of Y, or calculate percentage change.
Choose Calculation Mode
Calculate X% of Y
Example: 25
Example: 200
Result
📊
Enter values to calculate percentage
Quick Examples
25% of 200
= 50
50 is ? % of 200
= 25%
100 → 150
= 50% increase
Understanding Percentages
What is a Percentage?
A percentage is a way of expressing a number as a fraction of 100. The word "percent" means "per hundred." For example, 25% means 25 out of 100, or 25/100, or 0.25.
Percentages are used everywhere in daily life: discounts, taxes, tips, test scores, and statistics.
Common Formulas
- •X% of Y: (X ÷ 100) × Y
- •X is what % of Y: (X ÷ Y) × 100
- •% Change: ((New - Old) ÷ Old) × 100
- •Percentage Point: Direct difference between percentages