A firm has sales of $710,000. The cost of goods sold is equal to 57 percent of sales. The firm has an average inventory of $23,940. How many days on average does it take the firm to sell its inventory?
a. 12.31 days
b. 16.90 days (*picked and was wrong answer*)
c. 15.29 days
d. 21.59 days
e. 10.77 days