Algebra 1 Companion Book, Vol 1 – Summer Edition

2.2.5 Percent Increase and Decrease – Worksheet

Example 1:

Find each percent change. Tell whether it is a percent increase or decrease. 1. 25 to 45 2. 10 to 8 3. 400 to 300

4. 16 to 18

5. 40 to 50

6. 50 to 40

Example 2:

7. Find the result when 40 is increased by 85%.

8. Find the result when 60 is increased by 3%.

9. Find the result when 350 is decreased by 10%.

10. Find the result when 16 is decreased by 50%.

Example 3:

11. What is the final price on a $185 leather jacket that is on sale for 40% off?

12. Neal bought a book on sale for $3.60. It was originally priced at $12. What was Neal’s discount as a percent?

Example 4:

13. Yolanda bought a video that was priced at a 65% markup over the manufacturer’s cost of $12. What was Yolanda’s cost?

14. Randy sells hats for $12.35. The wholesale cost of each hat is $6.50. What is Randy’s markup as a percent?

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