Percent Change & Error
Last year, you scored 150 points during the basketball season. This year you scored 164. Find your percent change.
9% increase
The price of a $500 kitchen table on sale for 25% off.
$375
What is the sales tax when a skateboard costs $40 and has a sales tax rate of 4%?
What is $1.60
How much interest do you need to pay if you took out a loan for $2000 for 3 years with a 2% interest rate?
$120
55 is what percent of 75?
73%
The GPS says it will take 22 minutes but it actually took 25. Find the percent error.
12% error
$224
How much should you tip your server if your bill came to $35.96? (tip 20%)
$7.19
Kara sells makeup for the company Mary Kay. She earns 8% commission on all sales. If she sold $1,255 worth of product last week, then how much did she make?
$100.40
What is 45% of 18?
8.1
A $50 jacket is now only $32.50. What was the percent change?
35% decrease/discount
$8.70
You are charged 6% sales tax. You purchase a new bicycle for $27. What is the total price of the bicycle including tax?
What is $28.62
Michael took out a loan for college. It has a 2% interest rate and it was paid off in 7 years. If he paid $2100 in interest, the how much was the original loan amount?
$15,000
20% of students said their favorite color was green. If there are 55 students, then how many students chose green as their favorite color?
11 students
You guess that there are 120 M&Ms in the jar, and there actually were 103. Find you percent error.
17% error
Custom Nike shoes are marked up 12% compared to regular pairs. If a regular pair of Nikes are $109, how much will the custom pair cost?
$122.08
You bought new sneakers for $81.12 including tax. The price before tax on the sneakers was $78. What percent of sales tax were you charged?
What is 4%
Jake is a car salesman. He earns a base pay of $1,000 a month and 2.5% commission on all sales. If he sold $235,000 worth of cars this month, then how much did he make total?
$6,875
At the musical, 85% of the seats were filled. If there were 200 seats total, then how many seats were empty?
30 empty seats
A $21,000 car is now worth $18,520. Find the percent of change.
12% decrease
You are ordering Nike hoodie online for $59. It is on sale for 20% off. You also pay $5.50 for shipping. How much do you pay total?
$52.70
Mr. and Mrs. Smith go out to lunch at Texas Roadhouse. The bill for their restaurant meal is $22. The sales tax is 6% and they decide to leave a 15% tip. How much do they spend total?
$26.82
Kevin opens a saving account with a 3% interest rate. He puts $1,500 into the account. How much will the account have in total after 4 years?
$1,680
The pitcher in the baseball game threw 45 strikes. If about 42% of his pitches were strikes, then how many pitches did he throw altogether?
107 pitches