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 Petroxy Oil Co. and make comments on its second-year performance as compared to its first-year performance The following shows Petroxy Oil Co.'s income statement for the last two years. The company had assets of $11,750 million in the first year and $18,796 million in the second year. Common equity was equal to $6,250 million in the first year, and the company distributed 100% of its eamings out as dividends during the first and the second years. In addition, the firm did not issue new stock during either year