Percentage Calculator
Calculate percentages, increases, decreases, and more
Basic Percentage: What is X% of Y?
Example: What is 20% of 150?
Solution: 20% × 150 = 30
Percentage Visualization
0%
20%
100%
Percentage
20%
Value
30
Percentage Formulas & Examples
Basic Percentage
X% of Y = (X/100) × Y
20% of 150 = 30
Percentage Increase
% Increase = [(New – Original)/Original] × 100
100 to 150 = 50% increase
Percentage Decrease
% Decrease = [(Original – New)/Original] × 100
200 to 150 = 25% decrease
Find Percentage
X is what % of Y = (X/Y) × 100
30 is 20% of 150
Common Percentages
1% = 0.01
5% = 0.05
10% = 0.1
15% = 0.15
20% = 0.2
25% = 0.25
50% = 0.5
75% = 0.75
Percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, “%”.