Question 4 2.7 pts Abad Tara Rotar 6.8M Amy purchases 10 units of inventory from Bob for $1,700. Amy then sells these 10 units to Jill for $2,000. Jill pays $1,950 in cash and puts the remainder on open account. What is the gross margin ratio for Amy? 6451 17.647% 12.5% 12.825% None of the above apply to this situation. 15%