How to Calculate Percentage

Basic Percentage Formula

The basic formula to calculate percentage is:

Percentage = (Part / Whole) × 100

Step-by-Step Calculation

1. Identify the part and the whole: Determine which number represents the part and which represents the total amount.
2. Divide the part by the whole: Perform the division: Part ÷ Whole.
3. Multiply by 100: Take the result from step 2 and multiply it by 100 to convert it to a percentage.
4. Add the percentage symbol (%): Append the % symbol to your result.

Example

If you have 15 apples out of a total of 60 fruits, what percentage are apples?

• Part = 15 (apples)
• Whole = 60 (total fruits)
• Calculation: (15 ÷ 60) × 100 = 0.25 × 100 = 25%

Common Percentage Calculations

• Percentage of a number: (Percentage ÷ 100) × Number
• Percentage increase: [(New Value – Original Value) ÷ Original Value] × 100
• Percentage decrease: [(Original Value – New Value) ÷ Original Value] × 100