Required information [The following information applies to the questions displayed below.] Simon Company's year-end balance sheets follow. For both the current year and one year ago, compute the following ratios: For both the Current Year and 1 Year Ago, compute the following ratios: (1-a) Profit margin ratio. (1-b) Did profit margin improve or worsen in the Current Year versus 1 Year Ago? (2) Total asset turnover. (3-a) Return on total assets. (3-b) Based on return on total assets, did Simon's operating efficiency improve or worsen in the Current Year Ago