Percent of Change
Tax/Tip
Mark-Up/Discount
Simple Interest
Commission and Fees
Percent Error
100
Last month, Tom had 42 baseball cards, now he has 79 baseball cards. What is the percent of increase, rounded to the nearest percent, in his baseball card collection?
88%
100
Carlos buys a pair of shoes for $129.75. The sales tax is 6.75%. What is the total cost of the shoes with tax?
$138.50
100
Madden 26 is typically $70.00. Right now Game Stop is having a 45% off sale. What is the cost of the game with the discount?
$38.50
100
Calculate the Interest
principal: $14,750, rate: 2%, time: 15 years
$4,425
100
I earn a 3% commission every time I sell a house. If my total sales in one month were $600,000, how much will I earn in commisions for the month?
18,000
100
There are 102 counties in the state of Illinois. Alvin says that there are about 100 counties in the state. What is the percent error in Alvin’s estimate?
2%
200
In 1980, a loaf of bread cost $0.50. It now costs $1.90. What was the percent of change?
280%
200
Sienna wants to purchase a pair of binoculars that is on sale for $179.45. The sales tax rate in her county is 8%. What is the tax on her binoculars?
$14.36
200
The wholesale cost of a couch at a furniture store is $1,115.30. The markup for the couch is 47%. What is the selling price of the couch?
$1,639.49
200
I want to buy a car for $27,000 so I take out a loan. The rate is 2.75% and will take 8 years to pay off. How much interest will I pay on this loan?
$5,940
200
Selena bought some art supplies from an online retailer. The retailer charges a $7.15 shipping fee or 8% of the total purchase, whichever is greater. If Selma’s total purchase is $87.65, how much shipping will she pay?
Selena will pay $7.15
200
I estimated that I would get a 85 on the test but I actually got a 72. What was my percent error? Round to the nearest whole percent.
18%
300
There are 27 members in a running club this fall. By next summer, Megan hopes the number of members will be 150% of this number. What is Megan’s goal for the number of members next summer?
41 members
300
The Theil family stayed in a hotel room for 7 nights while on vacation. The total cost before tax was $1,895. If the hotel room tax rate in the city is 12%, what was the total cost for the hotel room?
$2,122.40
300
Bass Pro Shop pays a wholesale price of $15.85 for a fishing rod and sells it for $37.02. What is the percent markup? Round to the nearest whole percent.
134%
300
Ned's savings account pays a simple annual interest rate of 4.5%. Suppose he deposits $5,500 in the account and makes no additional deposits or withdrawals for 9 years. What will the total value of the account be after 9 years?
$7,727.50
300
Kristina wants to earn at least $800 this week in commission. What is the minimum amount she needs to sell in order to earn $800 if she earns a 6.25% commission on everything she sells? Round your answer to the nearest dollar if necessary.
$12,800
300
A sports journalist estimates that Notre Dame will win 9 out of their 12 games this season. After 3 games, the team has won 2 out of 3. If the team continues winning at this rate, what will be the percent error of the journalist's estimate once the season is over?
12.5%
400
Juliana bought 75 tickets to use at the fair. She used some of the tickets to ride the bumper cars and play some games. Now she has 36 tickets left. What is the percent of decrease in the number of tickets that she has?
52% Decrease
400
Brian paid $1.75 in sales tax on a purchase of $22.45. What is the sales tax rate? Round the percent to the nearest tenth if necessary.
7.8%
400
An electronics store is having an 10% off sale on everything in the store. To the nearest cent, which of the following could represent regular prices and sale prices of items in the store during the sale. Select all that apply.
Ⓐ regular price: $25.99, sale price: $23.39
Ⓑ regular price: $78.33, sale price: $43.56
Ⓒ regular price: $355.50, sale price: $184.40
Ⓓ regular price: $710.50, sale price: $639.45
Ⓔ regular price: $989.99, sale price: $890.99
A
D
E
400
$16
400
Mason wants to buy tickets for the upcoming Morgan Wallen concert. Mason decides to buy a total of four tickets for him and his three pals. The tickets cost $67.67 a piece. At checkout, a 7% tax is applied to the sale as well as 1.25% processing fee. What is the total for Mason and his pals to attend the concert?
$293.01
400
The table shows the predicted and actual rainfall for a local city. What is the percent error for the amount of rainfall? Round the answer to the nearest tenth of a percent, if necessary.
Rainfall (inches)
Predicted 3.25
Actual 4.5
27.8%
500
Brad is training to try out for the wrestling team at his school. Each week he records the number of push-ups he can do in 1 minute so that he can track his improvement. The table shows his results over the first 3 weeks.
Week Number of Push-Ups
1 35
2 40
3 47
Find the percent of change from Week 1 to Week 2 and from Week 2 to Week 3. Round to the nearest tenth percent if necessary. Which interval showed a greater percent of increase? How much greater was the increase?
The percent of increase was greater from Week 2 to Week 3 than it was from Week 1 to Week 2 by about 3.2%.
500
If my subtotal was $164.78 and I left a tip of $33.96, did I leave a 20% tip? How much $$ did I over or under tip?
I over tipped by $1.00
500
A lawn mower is on clearance for 45% off. If the sale price of the lawn mower is $595.49, what was the original price? Round to the nearest cent if necessary.
$1,082.71
500
Blair is buying a car. The car costs 18,500. The tax rate is 7%. Blair plans to make a down payment of $4000. The sales tax is added to the price of the car before the down payment is made. She is considering a 3 year loan with a simple interest of 7% each year. What will her monthly payment be?
$530.89
500
Nina has a job in sales and earns a monthly salary of $725 plus a 8% commission on his sales over 10,000. Her brother Jared also has a sales job and earns only a commission of 8% on his sales. One month, Nina and Jared each have sales of $21,300. Who earned more money that month? How much more?
Jared, $75 more.
500
The table shows the estimated and actual shipping fees for a package. What is the percent error for the shipping fees? Round the answer to the nearest tenth of a percent, if necessary.
Shipping Fees ($)
Estimated 10.95
Actual 8.75
25.1%