
Tony H. answered 09/26/18
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Math and Physics Tutor with 9+ years of experience
To find the percentage, divide the smaller number by the total number. The total amount he spent was $80, so this is the "total number." So divide 52 by 80.
52/80 = 0.65
To convert the decimal 0.65 into a percentage, move the decimal point two places to the right.... Then just add the percentage sign:
52/80 = 0.65 = 65%