(Ratio analysis) Assuming a 360-day year, calculate what the average investment in inventory would be for a firm, given the following information in each case. a. The firm has sales of $900,000, a gross profit margin of 10 percent, and an inventory turnover ratio of 5. b. The firm has a cost-of-goods-sold figure of $480,000 and an average age of inventory of 40 days. c. The firm has a cost-of-goods-sold figure of $1.15 million and an inventory turnover rate of 9. d. The firm has a sales figure of $27 million, a gross profit margin of 18 percent, and an average age of inventory of 25 days. a. The firm has sales of $900,000, a gross profit margin of 10 percent, and an inventory turnover ratio of 5, what is the firm's average investment in inventory? $ 162,000 (Round to the nearest dollar.) b. If the firm has a cost-of-goods-sold figure of $480,000 and an average age of inventory of 40 days, what is the firm's average investment in inventory? $ (Round to the nearest dollar.)