okay lets say i have 20 and i want to find out 23 percent of it. You do 20 x .23=4.60 percent easy huh?
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You can decrease a number by 10 percent by multiplying it by 0.9
Multiplying the real number by 100 gives the number as a percent, so . . . 3.3 expressed as a percent is 330%
Multiplying
Increasing a number by 7 percent is the same as multiplying the number by 1.07. In this instance, 8.15 x 1.07 = 8.7205.
30% of $120 would be $36. You calculate this by multiplying the percent you want to find and the whole.