Percent of Change: Find the Original Amount Word Problems

Solving word problems involving percentages: If a car depreciated by 15% and its original value was $20,000, what is its current value?

• $16,000

• $18,000

• $17,000

• $19,000

You have cleaned out your closet and gotten rid of some clothes you no longer wear. You originally had 28 pairs of shoes, now you only have 19. What is your percent of change in the number of shoes you own?

• a 32% decrease

• a 68% decrease

• a 147% decrease

• a 47% decrease

Find the percent of change from 10 inches to 14 inches.

• 40%

• 4%

• 28.57 %

• 2.857%

If you have a percent decrease problem, your original amount gets...

• bigger

• smaller

Darren makes $10 per hour. Next semester, he will be making $14 per hour. What rate of increase does this represent? Round the answer to the nearest tenth of a percent.

• 28.5%

• 40%

• 71%

• 60%

A shoe sales associate earned $300 in August. In September she earned 8% more than she did in August. How much did she earn in September?

• $308

• $324

• $200

• $380

Lacie bought a $20 shirt that was marked down 30%.  What did she pay AFTER tax of 6% was added to the price of the shirt?

• $14

• $15.20

• $26.00

• $14.84

Verizon is putting out a new iPhone that sells @ $156.40

The price had been reduced by 10%. You have purchased the phone and signed a statement saying you will pay the restocking fee if returned. You have decided to return it for a different phone. The re-stocking fee is $45.

a. What was the original price before it was reduced?

b. How much was the discount?

c. The restocking fee is what % of the purchase price?

A sweater is $43. It is on sale for 20% off. What is the final price?

• $47

• $34.40

• $23

• $8.60

Mary lost 30 pounds.  Before her diet she weighed 180 pounds.  What is the percent of change?

• 17% Decrease

• 18% Decrease

• 19% Decrease

• 20% Decrease