Answer:Percentage change in the book price =7.17%
Explanation:
Initial Price of the used book = $73.25
Discounted price = $68.00
Percentage change in the book price = Initial Price - Discounted price/ Initial Price) x 100
($73.25 - $68.00) /$73.25 =5.25 /$73.25 =0.07167
=7.17%