Percentage Calculator
Calculate percentages, percentage of numbers, and percentage changes easily.
What is X% of Y?
Result
20% of 500 is
100.00
Calculation
(20 ÷ 100) × 500 = 100.00
Percentage Formulas
1. What is X% of Y?
Formula: (X ÷ 100) × Y
Example: What is 20% of 500? → (20 ÷ 100) × 500 = 100
2. X is what % of Y?
Formula: (X ÷ Y) × 100
Example: 50 is what % of 200? → (50 ÷ 200) × 100 = 25%
3. Percentage Change
Formula: ((New - Original) ÷ Original) × 100
Example: From 100 to 150 → ((150 - 100) ÷ 100) × 100 = +50% increase