Percentage of a Number

Calculate what percentage one number represents of another number. Perfect for finding percentages, proportions, and ratios.

How to Calculate Percentage of a Number

To find what percentage {{percent}}% is of the number {{number}}, use this formula:

Percentage = (Number × Percent) / 100

Example Calculation

Let's say you want to find 15% of 200:

  • Number = 200
  • Percentage = 15%
  • Result = (200 × 15) / 100 = {{result}}

Step-by-Step Process

  1. Identify the number you want to find the percentage of
  2. Identify the percentage you want to calculate
  3. Multiply the number by the percentage
  4. Divide the result by 100

Common Use Cases

  • Sales tax: Calculate 8.5% tax on a $50 purchase
  • Tips: Calculate 15% tip on a $30 restaurant bill
  • Discounts: Find the discount amount for 20% off $100
  • Proportions: Determine what percentage 25 is of 200
Tip: You can also think of this as finding what portion of the total the percentage represents.