2.3 Using the profit-and-loss statement you developed in question 2.2 and assuming that the company's beginning inventory was $15 million, ending inventory was $6 million, and total investment was $30 million including inventory, determine the following: a. gross margin percentage b. net profit percentage c. operating expense percentage d. inventory turnover rate e. return on investment (ROI) f. net marketing contribution g. marketing return on sales (marketing ROS) h. marketing return on investment (marketing ROI) i. Is the company doing well? Explain your answer. 2.3 Using the profit-and-loss statement you developed in question 2.2 and assuming that the company's beginning inventory was $15 million, ending inventory was $6 million, and total investment was $30 million including inventory, determine the following: a. gross margin percentage b. net profit percentage c. operating expense percentage d. inventory turnover rate e. return on investment (ROI) f. net marketing contribution g. marketing return on sales (marketing ROS) h. marketing return on investment (marketing ROI) i. Is the company doing well? Explain your