# How Do I Work Out the Percentage of a Sum?

## Answer

You can work out the percentage of a sum by taking the results, divide by the whole amount that is required and multiply by hundred. You can also work out other percentages if you have been provided with the final results and the total required outcome figures.
Q&A Related to "How Do I Work Out the Percentage of a Sum"
 1. Show the difference between two sums, dividing the second by the first, then subtracting one. If your first sum is 6, and your second is 9, divide 9 by 6. This gives 1.5. Subtract http://www.ehow.com/how_8689646_calculate-percenta...
 to find,ten,pecent,you,divide,all,sums,by,ten. to,find,twenty,percent,you,divide,by,ten,and,multipy,your,answer,by,2. to,find,thirty,percent,you,divide,by,ten,and,multiply,by,3. to, http://wiki.answers.com/Q/How_do_you_solve_percent...
 You can insert a summary field on the percentages. That will sum them up. regards Emre http://www.experts-exchange.com/Database/Reporting...
 For your example, you're dealing with binomial probabilities. One way of calculating your first example could be: C(2, 1)1/2)1*1/2)1 + C(2, 2)1/2)2*1/2)0 (for 1 black and 2 black, http://answers.yahoo.com/question/index?qid=200907...
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