For both the current year and one year ago, compute the following ratios: The company's income statements for the current year and 1 year ago, follow. (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 versus 1 Year Ago? Compute total asset turnover for the current year and one year ago Compute return on total assets for the current year and one year ago