72 / 90 = 0.8
0.8 = 80 percent
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90% of 72 = 90% * 72 = 0.9 * 72 = 64.8
72 is an increase of negative 20% compared to 90.
72 is 80 percent of 90.
72% of 90 = 80A percent is 1 part out of 100.1%isequalto1100or0.01.Proportions can be used to solve percent problems.partwhole=percent100solveThe part is 72.The percent is 90%.Let n represent the whole.Write a proportion to solve for n.72n=9010090n = 72 · 10090n = 7,20090n ÷ 90 = 7,200 ÷ 90n = 80
72 pounds