# Algebra 1 Companion Book, Vol 1 – Summer Edition

2.2.5 Percent Increase and Decrease – Practice

1.  Find the percent change from 48 to 228. Tell whether it is a percent increase or decrease. If necessary, round your answer to the nearest percent.

2.  Find the percentage change from 350 to 231. Indicate whether it is an increase or a decrease. If necessary, round your answer to the nearest percent.

3.  Find the result when 20 is increased by 95%.

4.  Find the result when 80 is decreased by 75%.

5.  Admission to a theme park is \$12. Students receive a 10% discount. What is the amount of the discount? How much would a student pay?

6.  The price of a train ticket from Columbus to New York is normally \$122.00. However, children under the age of 16 receive a 60% discount. Find the sale price for someone under the age of 16.

7.  A bookstore buys Algebra 1 books at a wholesale price of \$16 each. It then marks up the price by 83%, and sells the Algebra 1 books. What is the amount of the markup? What is the selling price?

8.  An office equipment store buys highlighter pens boxes at a wholesale price of \$15 each. It then marks up the price by 94%, and sells the highlighter pens boxes. What is the amount of the markup? What is the selling price?

9.  A watch was purchased for \$25. The wholesale cost was \$16. What percentage was the markup?

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