Convert 10 to a decimal by removing the percent sign and dividing by 100. If using a calculator you can calculate one number as a percentage of another by dividing the numbers and multiplying by 100. How to Calculate a Percentage of a Number If you want to calculate a percentage of a number in Excel simply multiply the percentage value by the number that you want the percentage of.
If you are using Excel for the web click Home Number Format Percentage.
To find the percentage of one number in relation to another number then divide the relative number by the base number and multiply the result by 100. You divide your percentage by 100. 100 x 8 12 6667 2dp. Then take the resulting number and move the decimal place two spaces to the right.