Relier Pairs Percent ReviewVersion en ligne vocabulary and formulas for test review par STEPHANIE GREGORY 1 how to find percent error 2 To find the total after tax or gratuity 3 To change a percent to a decimal 4 To find the total after a disccount 5 interest rate 6 interest 7 To change a decimal to a percent 8 how to find percent increase or percent decrease 9 simple interest formula 10 Principal 11 how to find the percent of a number the amount of money being invested or the amount of money being borrowed Multiply the cost by the percent as a decimal, the subtract that amount from the cost difference/actual = %/100 Move the decimal 2 times to the right Move the decimal two times to the left the % being charged for a loan or the % being earned for investing is/of = %/100 difference/original = %/100 the amount of money being charged to borrow money or the amount of money earned for investing money Multiply the cost by the percent as a decimal, then add it back to cost I = PRT
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