How the Calculation Works
After you enter your values, the calculator shows the answer with a clear explanation of how it was calculated.
For example, 20% of 500 is 100 because 500 × 20 ÷ 100 = 100. Showing the working helps you understand the result and check the calculation.
What Is a Percentage?
A percentage expresses a value as a part of 100. The symbol % means “per hundred.”
Percentages are commonly used for discounts, exam results, taxes, interest rates, commissions, statistics, and many other calculations.
- 10% means 10 out of 100.
- 25% means 25 out of 100.
- 50% means half of a whole.
- 100% means the complete amount.
Percentage Formulas
Find a Percentage of a Number
Percentage Value = Number × Percentage ÷ 100
To find 20% of 500:
500 × 20 ÷ 100 = 100
Therefore, 20% of 500 is 100.