Percentage Calculator

Calculate percentages, percentage changes, percentage differences, and more with our easy-to-use, free online tool.

Calculation Types

Basic Percentage Calculation

Calculate what is X percent of Y.

Result

Formula: (Percentage / 100) × Value = Result

Percentage Change

Calculate the percentage change from old value to new value.

Result

Formula: ((New Value - Old Value) / Old Value) × 100 = Percentage Change

Percentage Difference

Calculate the percentage difference between two values.

Result

Formula: |(Value1 - Value2)| / ((Value1 + Value2)/2) × 100 = Percentage Difference

Percentage Increase

Calculate the result after increasing a value by a percentage.

Result

Formula: Original Value × (1 + Percentage/100) = Increased Value

Percentage Decrease

Calculate the result after decreasing a value by a percentage.

Result

Formula: Original Value × (1 - Percentage/100) = Decreased Value

Find Percentage

Calculate what percentage X is of Y.

Result

Formula: (Part / Whole) × 100 = Percentage

Fraction to Percentage

Convert a fraction to a percentage.

Result

Formula: (Numerator / Denominator) × 100 = Percentage

Percentage Calculation Examples

Basic Percentage

Example: What is 20% of 150?

Solution: (20/100) × 150 = 30

Percentage Change

Example: A product price increased from $50 to $65. What is the percentage increase?

Solution: ((65 - 50) / 50) × 100 = 30%

Percentage Difference

Example: What is the percentage difference between 80 and 120?

Solution: |80 - 120| / ((80 + 120)/2) × 100 = 40%

Percentage Increase/Decrease

Example: Increase 200 by 15%.

Solution: 200 × (1 + 15/100) = 230