Percentages
What is 25% of 200?
50
Walmart purchases shirts for $10. They markup the price by 80% before selling them. How much does Walmart sell the shirt for?
$18
Your team scored 72 points in the first game. This last game you scored 63 points. What was the percent decrease of your score?
12.5% decrease
You planned for 400 people to come to the party. However, 450 people came. What is the percent error in your guess? (round to the nearest percent)
11%
You have a 10% off coupon for a $50 dollar jacket. At checkout they apply the coupon and then apply the 5% sales tax. How much is the final cost of the jacket?
$42
If you scored 18 out of 30 on a test, what is your percentage score?
60%
A video game console was $60. The store raised the price to $72. What was the percent markup?
20% markup
If the price of a book increases from $15 to $20, what is the percent change?
33.33%
If a thermometer reads 100°F but the actual temperature is 98°F, what is the measurement error?
2°F
A store marks up a $30 pair of shoes by 20%. When you go buy the shoes, they apply a 8% sales tax at checkout. How much do the shoes cost?
$38.88
Convert 0.75 to a percentage.
75%
Your food at the restaurant cost $68.45 and you want to leave a 20% tip. How much is the final bill including tip?
$82.14
Calculate the percent change if a stock price drops from $50 to $40.
20%
The measurement of a cup of water is 50 mL. Mrs. Jensen estimated it to be 55 mL. What is her percent error?
10%
The population of a town was 25,000 people. The population decreased by 10%. Then the next year the population rose by 5%. What is the population now?
23,625
A shirt costs $40, and it is on sale for 20% off. What is the sale price?
$32
You earn a 7.5% commission selling cars. You sold $75,000 in cars this week. How much commission did you earn?
$5,625
Your team scored 21 points in the first game. In the second game you scored 31 points. What was the percent increase in your score? (round to the nearest percent)
48% increase
If a ruler is miscalibrated and reads 10 cm instead of the actual 12 cm, what is the measurement error?
2 cm
You have a 35% off coupon for a $60 meal. You then leave a 20% tip for your waiter. What is the total cost of the meal?
$46.80
If a population of a town increases from 1,000 to 1,200, what is the percentage increase?
20%
You have a small plant in your kitchen. When you first got it, it was only 3.4 inches tall. It has grown by 85% in the last month. How tall is it now?
6.29 inches tall
If a population decreases from 2,000 to 1,500, what is the percent change?
25%
A rectangular photograph is measured to be 8.5 inches in length. The actual length of the photograph, however, is 8.1 inches.
Approximately: 4.94%
$472