If you have to find 20% of 'something', multiply 'something' by 0.2 or 2/10 or else
divide 'something' by 5 . Whichever is easiest for you ... they're all the same.
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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%
Divide it by 20 or multiply it by 0.05
450 x 0.2 = 90
You divide 550 by 5, giving you the answer of 110. 110 is 20% of 550