Percent Increase and Decrease

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Class:

Date:

Show your work for each problem.

1.
A shirt's price increased from 40 dollars to 50 dollars. What is the percent increase?
1. a)50%
2. b)20%
3. c)25%
4. d)10%
2.
A laptop's price dropped from 1000 euros to 800 euros. What is the percent decrease?
1. a)200%
2. b)80%
3. c)25%
4. d)20%
3.
What multiplier should you use for a 15% increase?
4.
What multiplier should you use for a 30% decrease?
5.
A book costs 20 euros. After a 25% increase, what is the new price?
6.
A jacket costs 80 dollars. It's on sale for 20% off. What is the sale price?
7.
A population grew from 250,000 to 300,000. What is the percent increase?
1. a)20%
2. b)25%
3. c)16.7%
4. d)50%
8.
A salary increased from 2500 euros to 2750 euros. What is the percent increase?
9.
A phone costs 600 euros. It's on sale for 15% off. What is the sale price?
10.
A restaurant meal costs 45 euros. You add a 20% tip. What is the total?
11.
A stock dropped from 80 dollars to 68 dollars. What is the percent decrease?
1. a)12%
2. b)85%
3. c)15%
4. d)17.6%
12.
A price dropped from 90 euros to 72 euros. What is the percent decrease?
13.
After a 20% increase, a membership costs 72 euros. What was the original price?
14.
After a 25% discount, a TV costs 450 euros. What was the original price?
15.
A price increases by 50%, then decreases by 50%. What is the net percent change from the original?
1. a)25% increase
2. b)50% decrease
3. c)0% (back to original)
4. d)25% decrease
16.
A stock went from 60 dollars to 45 dollars to 54 dollars. What is the overall percent change?
17.
A shop increases prices by 10%, then offers a 10% sale. If an item originally cost 100 euros, what does it cost now?
18.
A company's revenue went from 2 million to 2.4 million euros. What single percent increase is this?