Percentage Calculator

Calculate a percentage of a number (for example, 15% of 200).

How this calculator works

This tool multiplies your value by the percentage and divides by 100. It’s useful for discounts, markups, commission, and quick “X% of Y” calculations.

Formula used

Result = Value × (Percentage / 100)

Example calculation

For 15% of 200:
200 × (15 / 100) = 30

FAQs

  • Can I use decimals? Yes—both inputs support decimals.
  • Why is the output rounded? It is rounded to 2 decimal places for clean display in common use cases.
  • Is negative percentage allowed? Yes. A negative percentage produces a negative result, which can be helpful in some calculations.