Quiz about Percentage Increase and Decrease

Question 1

Find the percent of change if Eddie started with 20 tickets and ended with 30 tickets.

Accepted Answer

Increase 50%

Answer

Increase 10 tickets

Answer

Increase 33%

Answer

Decrease 50%

Question 2

Michelle bought a new tablet for $360 last month. Now, it is priced at $280. What is the percent of change in the price of the tablet?

Accepted Answer

22.2%

Answer

9%

Answer

80%

Answer

800%

Question 3

A $30 pair of jeans is on sale for $15. What is the percent of change for the pair of jeans?

Accepted Answer

25%

Answer

10%

Answer

15%

Answer

4%

Question 4

In the 6th grade, Miguel read 15 books. In 7th grade, he read 21 books. What was the percent change in the number of books Miguel read from 6th to 7th grade?

Accepted Answer

40% increase

Answer

40% decrease

Answer

20% increase

Answer

20% decrease

Question 5

Does this question represent a percent INCREASE or a percent DECREASE?

Accepted Answer

Increase

Answer

Decrease

Question 6

A car decreases in value by 15% over a year. If it was originally worth $20,000, what is its value after one year?

Accepted Answer

$17,000

Answer

$18,000

Answer

$15,000

Answer

$16,500

Question 7

A pair of shoes was marked down 25% from its original price of $80. What is the new price?

Accepted Answer

$60

Answer

$70

Answer

$65

Answer

$55

Question 8

If a computer's price is reduced from $$1200 to $$ 960, what is the percentage decrease?

Accepted Answer

20%

Answer

25%

Answer

15%

Answer

10%

Question 9

A store sold 150 items last month and 180 items this month. What is the percentage increase in sales?

Accepted Answer

20%

Answer

15%

Answer

25%

Answer

30%

Question 10

If a shirt originally costs $50 and is marked down by 20%, what is the new price?

Accepted Answer

$40

Answer

$30

Answer

$45

Answer

$35

Question 11

If a shirt originally costs $50 and is on sale for 20% off, what is the sale price?

Accepted Answer

$40

Answer

$45

Answer

$10

Answer

$35

Question 12

A car's value decreases from $$20,000 to $$ 15,000. What is the percentage decrease?

Accepted Answer

25%

Answer

20%

Answer

30%

Answer

15%

Question 13

A painting cost $4,563 though over a span of 5 years increased by 500%. How much does it cost now?

Accepted Answer

$27,378

Answer

$41,000

Answer

$31,000

Answer

$27,386

Question 14

If a population of 5000 increases by 10% in a year, what will be the population after one year?

Accepted Answer

5500

Answer

6000

Answer

5050

Answer

6500

Question 15

A population of 5000 increases by 10% in a year. What is the new population?

Accepted Answer

5500

Answer

6000

Answer

500

Answer

4500

Question 16

A population of 500 increases by 10% in a year. What is the new population?

Accepted Answer

550

Answer

600

Answer

510

Answer

500

Question 17

Recent developments in surgical procedures change the average healing time for some operations from 8 weeks to 3 weeks. What is the percent change for the healing time?

Accepted Answer

62.5%

Answer

95%

Answer

5%

Answer

37.5%

Question 18

Erika decreased the amount of salt she consumes every day from 5,000 mg to 2,000 mg. By what percentage did Erika decrease the amount of salt she consumes?

Accepted Answer

60%

Answer

15%

Answer

25%

Answer

40%

Question 19

A pair of basketball shoes was originally priced at $80, but was marked up 30%. What was the retail price of the shoes?

Accepted Answer

$104

Answer

$24

Answer

$110

Answer

$83

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