how do you get the percentage of a number?

Answer 1

For your question "How does one figure out 10% or 15% of a total number asked? Say... 120", percent means "per 100" (centum is the Latin word for 100) so 10% is 10 per 100, in other words 10/100. Thus 10% of 120 is (10/100)x120 = 12.
For the reverse "15 is what percent of 120" this can be rephrased as "15 is what/100 of 120". That is 15 = (what/100)x120. Now solve for "what". what = 15x100/120 = 12.5. Hence 15 is 12.5% of 120.

Answer 2

Percentage is figured by dividing. For example if you wanted to figure what percentage of 100 50 is you divide 50 by 100 which equals .50 or 50 percent.

Answer 3

division
example what is 20 percent of 100?
do 100/.20. You have to remember to change the percentage to a decimal first so you have it right.
20 percent is .20
5 percent is .05 ect.

Answer 4

for example
0.5
you need to move the decimal two places to the right, like so:
50
then, just put a percent sighn (%) after the 50.
50%