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Percentage Calculator

Quickly find out how much a percentage of a given value represents.

Result
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How to use the percentage calculator

  1. Enter the percentage you want to find, such as 15 for fifteen percent.
  2. Enter the reference value that the percentage applies to.
  3. Select Calculate to see the corresponding amount and the formula used.

15% of $500

To find the value of a 15% discount on an item priced at $500, enter 15 as the percentage and 500 as the value.

15 ÷ 100 × 500 = 75

The discount is $75. To get the final price, subtract $75 from $500: $425.

Useful situations for this calculation

  • Find the value of a discount, commission, or tax before adding or subtracting it from a total.
  • Set aside a portion of a goal, budget, or sales amount.
  • Quickly check how much a percentage-based fee represents in money.

Notes and limitations

  • This tool calculates the percentage portion of a value. It does not automatically add that portion to, or subtract it from, the total.
  • For consecutive increases or discounts, calculate each step from the correct base; percentages do not always combine by simple addition.
  • The result does not apply currency formatting, contractual rules, tax rules, or special rounding.

Frequently asked questions

What does this calculator calculate?

It finds the amount represented by a percentage of a value by multiplying the percentage by the reference value and dividing by 100.

How do I calculate a discount?

Calculate the percentage of the original price. That result is the discount amount; subtract it from the price to get the discounted total.

How do I calculate a percentage increase?

Use the percentage and the starting value to find the increase. Then add that amount to the starting value.

Can I use decimal values?

Yes. The calculator accepts decimal values for both the percentage and the reference value.