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Insula Company's cost of goods sold during the year is $540,000. The average inventory during the year is $80,000. Calculate the inventory turnover of Insula Company in days. (Round your answer to one decimal place.) a. 7.4 days O b. 47.2 days O c. 41.3 days O d. 54.1 days In the previous year, Hades Company had a net profit of $242,500 and total sales during that period was $970,000. Calculate the return on sales for Hades Company. O a. 25% O b. 75% O c. 50% O d. 30%