Problem 14.8 (L03) Comparing Bell and Gangway Financial information for Bell and Gangway (two computer manufacturers) follows: Bell Gangway Year Ended 12/31/2020 Year Ended 12/31/2019 Year Ended 12/31/2020 Year Ended 12/31/2019 (in millions) Sales Cost of sales Gross margin Inventory $61,133 49,462 $11,671 $ 1,180 $57,420 47,904 $ 9,516 $ 660 $8,922 7.316 $1,606 $ 400 $8,457 6,951 $1,506 $ 351 Required a. Compare Bell and Gangway in terms of their percentage changes in sales and gross margin. b. Compare Bell and Gangway in terms of their gross margin percentages. c. Compare Bell and Gangway in terms of inventory turnover and days' sales in inventory d. In your opinion, which firm has had better financial performance? Support your answer using your calculations in parts a, b, and c