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