5. Profitability ratios Profitability ratios help in the analysis of the combined impact of liquidity ratios, asset management ratios, and debt management ratios on the operating performance of a firm. Your boss has asked you to calculate the profitability ratios of Dernham Inc. and make comments on its second-year performance as compared with its first-year performance. The following shows Dernham Inc.'s income statement for the last two years. The company had assets of $10,575 million in the first year and $16,916 million in...