Basic Percent
Percent Change
Percent Error
Percent Mark Up/Down
Simple Interest
100
In Game 1, Carole struck out 30 times in 90 times at bat. In Game 2, she struck out 40 times in 120 times at bat. In Game 3, Carole struck out 42 times in 140 times at bat.
Complete the proportion to represent the percent of strike outs per at bats
100
Find the percent change from 74 hours to 85 hours to the nearest WHOLE percent
15%
100
A student estimated the water to be 10.4 mL. The actual was 9.7mL. What is the percent error to the nearest WHOLE percent?
7%
100
If lunch before the tip is $27.32, and after is $32.24, What percentage tip did Natalie give? Write your answer to the nearest whole percentage.
18%
100
If you borrow $675 for six years at an interest rate of 10%, how much interest will you pay?
$405
200
Jaxon hikes 220.2 meters up a mountain. If he is 60% of the way up, how tall is the mountain?
367 meters
200
Last year the 6th grade had 350 students. This year the number decreased 36%. How many students are in this year’s 6th grade class?
224 students
200
Jackie estimates that a piece of wood measures 5.5 cm. IF it actually measures 5.62 cm, what is the percent error of Jackie's estimate?
2.14%
200
After going out to eat, a bill is $25.30 and there is an 8% meal tax, how much is the bill? Write the answer to the nearest cent.
$27.32
200
Jean took out a 2-year loan to buy a car at 6% simple interest. If she has to pay $264 in interest, how much principal did she borrow?
$2,200
300
Susan found that about 62% of 80 classmates at school like hip-hop music. However, 70% of her 60 relatives like hip-hop. Do more classmates or relatives like hip-hop? Explain.
Classmates because 50 classmates like it compared to 42 relatives.
300
On the first week to the vet's office, Cara's kitten weighted 550 grams. On the second visit, the kitten gained 350 grams. On the third visit, the kitten had gained another 300 grams. What is the percent increase since the first visit in the kittens weight rounded to the nearest whole percent?
118%
300
A department store sells a pair of shoes with an 87% mark up. If the store sells the shoes for $192.61 then what is their non-markup price?
$103
300
Spencer buys a video game on sale. If the video game usually costs $39.99, an it was on sale for 20% off, how much did Spencer pay? Round to the nearest cent.
$31.99
300
Chris took out a $600 loan from the bank. At then end of 5 years, he pays back the principal plus $60 simple interest. What was the annual interest rate?
2%