Solve any percentage problem — find X% of a number, figure out what percent X is of Y, or work backwards from a percentage.
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Percentages are used for discounts, tax rates, exam scores, interest rates, profit margins, and data comparisons. Converting a percentage to a decimal or fraction makes it easier to calculate what part of a total a value represents.
Multiply the number by X/100. Example: 25% of 200 is 200 x 0.25 = 50.
Use (part / whole) x 100 to convert the relationship into a percentage.
Yes. Divide the known result by the percent in decimal form to work backward to the base.
It helps with discounts, exam scores, tips, tax amounts, growth rates, and business metrics.