Percentage Calculator
Calculate percentages easily. Find what percent one number is of another, calculate percentage of a total, and compute percentage increase or decrease.
Percentage Calculator
Formulas:
25 is 12.5% of 200
15% of 200 = 30
Change from 200 to 25: -87.5%
Results
This calculator determines the results based on the following standard financial formula for Percentage Formulas:
Variables Glossary
- Percentage Of
- What percentage one value is of another
- Value From Percent
- The resulting value when applying a percentage
- Percent Change
- Percentage increase or decrease between two values
Three common percentage calculations: (1) what percentage one number is of another, (2) the value represented by a given percentage of a total, and (3) the percentage change between two numbers.
How do I calculate a percentage of a number?
Multiply the number by the percentage and divide by 100. For example, 15% of 200 = (200 × 15) ÷ 100 = 30. Our calculator does this instantly.
How do I calculate percentage change?
Percentage change = ((New Value - Original Value) ÷ Original Value) × 100. A positive result means an increase, negative means a decrease.