How to calculate a percentage of a number: formula
The calculation of a percentage of a number is performed using the universal formula:
(Number × Percentage) / 100For example, to find 20% of the number 500: (500 × 20) / 100 = 100. This formula works for any values and allows you to accurately determine the percentage of a number.
Practical calculation examples
- Calculate 15% of the number 200: (200 × 15) / 100 = 30.
- To find 40% of the number 80: (80 × 40) / 100 = 32.
- To calculate 5% of the number 1000: (1000 × 5) / 100 = 50.
How to find a percentage of a number in Excel
In Excel, calculating a percentage of a number is done similarly. If the number is in cell A1 and the percentage is in A2, the formula will be: =A1*A2/100. For a constant percentage, use: =A1*20%/100, where 20% is your percentage.