Calculate a percent distribution you can use a formula that simply divides an amount by the total. You can also choose the number of decimal points youd like in each percentage. This process is the reverse of what you did earlier.
You divide your percentage by 100.
Find Percentage of a Number Partwhole 100 final outcome 210100 20 Remaining items 100-20 80. Substitute 010 for 10 in the equation. To find the average percentage of the two percentages in this example you need to first divide the sum of the two percentage numbers by the sum of the two sample sizes. How to Calculate a Percentage of a Number.