PERCENTAGES Review of Introductory MathematicsSummaryPertinent information concerning percentages and ratios is summarized below.Percentages and Ratios SummaryChange decimals to percents by multiplying by 100 andadding the percent symbol.Change fractions to percents by first changing the fractioninto a decimal. Then change the decimal to a percent.Compute percent differential by dividing the difference bythe original value, multiplying by 100, and adding thepercent symbol.Ratios are fractions written with a colon instead of adivision bar or slash.MA-01 Page 60 Rev. 0
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