Question

Suppose Brian is in the market for a used textbook and the campus bookstore is having a sale. If the initial price of the used book is $ 81 and the discounted price is $ 66,what is the percentage change in the book price? Round your answer to two places after the decimal.

Answer 1

Answer: The percentage change in the book price is 18.52%.

Step-by-step explanation:

Since we have given that

Initial price of the used book = $81

Discounted price = $66

So, Amount of discount would be

$81-66=\ 15$

So, the percentage change in the book price would be

$\dfrac{Discount}{Initial\ Price}\times 100\\\\=\dfrac{15}{81}\times 100\\\\=18.52\%$

Hence, the percentage change in the book price is 18.52%.