Percentage Calculator
Calculate percentages, increases, and decreases.
Percentage Calculator
Enter your values and calculate
How This Calculator Works
Percentages express a part per hundred. "X% of Y" multiplies; "X is what % of Y" divides; percent change measures the relative difference between two values.
Formula
X% of Y = (X/100)×Y; % change = (Y−X)/|X|×100
Example
25% of 200 is 50. A change from 200 to 250 is a 25% increase.
Practical Use Cases
- Discounts & tips
- Grade calculation
- Growth metrics