Question

he price of a book was $16 during a sale but $18 after the sale ended. By what percentage was the book marked up?

Answer 1

Answer:

12.5%

Step-by-step explanation:

percent of change:  (new value - old value) / old value

(18 - 16) / 16 = 2/16 = 1/8

1/8 = .125 or 12.5%