Percent of a #, Percent Proportion
The Percent Equation
Percent of Change
Sales Tax, Discount
Simple Interest
100
Find 78% of 50
What is 39? .78 x 50
100
32 is what percent of 50? Write an equation and solve.
What is 64%? 32 = p x 50
100
Find the percent of change. Round to the nearest whole percent. State whether it is a percent increase or percent decrease. original: 172 New: 254
What is 48% increase?
100
Find the total cost or sale price to the nearest cent. $25 backpack 7% sales tax
What is $26.75? $25 + ($25 x .07)
100
What is the formula for simple interest?
What is I = prt? I = interest earned p = principal (amount you put in) r = interest rate t = time
200
What is 225% of 60?
What is 135? 2.25 x 60
200
65% of what number is 39? Write an equation and solve.
What is 60? 39 = .65 x w
200
Find the percent of change. Round to the nearest whole percent. State whether it is a percent increase or percent decrease. original: $200 new: $386
What is 93% increase?
200
Find the total cost or sale price to the nearest cent. $210 bicycle 15% discount
What is $178.50? 210 - (210 x .15)
200
Find the simple interest earned to the nearest cent. $475; 5%; 2 years
What is $47.50? 475 x .05 x 2
300
6 is what percent of 120?
What is 5% 6 = y x 120
300
Find 42% of 300. Write an equation and solve.
What is 126? n = .42 x 300
300
Find the percent of change. Round to the nearest whole percent. State whether it is a percent increase or percent decrease. original: 75 new: 60
What is 20% decrease?
300
Find the percent of discount to the nearest percent. shirt regular price: $42 sale price: $36
What is 14%?
300
Find the simple interest paid to the nearest cent. $3200; 8%; 4 years
What is $1024? 3200 x .08 x 4
400
Find 0.8% of 35
What is 0.3? .008 x 35
400
12% of what number is 108? Write an equation and solve.
What is 900? 108 = .12 x w
400
Find the percent of change. Round to the nearest whole percent. State whether it is a percent increase or percent decrease. original: $49.95 new: $54.95
What is 10% increase?
400
Find the percent of discount to the nearest percent. Boots regular price: $78 sale price: $70
What is 10%?
400
Tonya deposited $450 into a savings account earning 3.75% annual simple interest. How much interest will she earn in 6 years?
What is $101.25? 450 x .0375 x 6
500
A family pays $21.99 each month for their long distance phone service. This is 80% of the original price of the phone service. What is the original price of the phone service? Round to the nearest cent if necessary.
What is $27.49? 80% x original = $21.99
500
A local hair salon increased their sales of hair products by about 12.5% this week. If they sold 48 hair products, how many hair products did they sell last week?
What is 43?
500
Tyree bought a collectible comic book for $49.62 last year. This year, he sold it for $52.10. Find the percent of change of the price of the comic book and list the change as an increase or decrease. Round to the nearest percent.
What is a 5% increase?
500
At the media store a certain DVD normally costs $21.99. This week the DVD is on sale for 25% off. Tara buys the DVD and pays using a $20 bill. Not including tax, how much change will she receive to the nearest cent?
What is $3.51?
500
David bought a computer for $600 using his credit card. The interest rate on his credit card is 19%. How much will he pay in all for the computer, if he pays off the balance at the end of 2 years?
What is $828? 600 x .19 x 2
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