Let's say you have $50. To find 20% of $50, you multiply 0.20 by $50.
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Divide it by 20 or multiply it by 0.05
If you have to find 20% of 'something', multiply 'something' by 0.2 or 2/10 or elsedivide 'something' by 5 . Whichever is easiest for you ... they're all the same.
you work out 20% of 100 which is 20, then you work out 20 % of 80, which is 16, then you add 20 and 16 togethor, giving you 36.
7 is what percent of 20 = 35%% rate:= 7/20 * 100%= 0.35 * 100%= 35%
To get 30 percent of something, multiply that something to 0.30 which is the decimal equivalent of 30%. Example: 30% of 49 = 0.30 * 49 = 14.7