Matching Pairs Percent ReviewOnline version vocabulary and formulas for test review by STEPHANIE GREGORY 1 To find the total after tax or gratuity 2 simple interest formula 3 interest rate 4 To find the total after a disccount 5 Principal 6 how to find percent increase or percent decrease 7 how to find the percent of a number 8 To change a percent to a decimal 9 To change a decimal to a percent 10 interest 11 how to find percent error is/of = %/100 Move the decimal 2 times to the right 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 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 % being charged for a loan or the % being earned for investing the amount of money being invested or the amount of money being borrowed difference/actual = %/100 I = PRT difference/original = %/100
New game