Did profit margin improve or worsen in the Current Year versus 1 Year Ago? Compute profit margin ratio for the current year and one year ago.. 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. For both the current year and one year ago, compute the following ratios: Exercise 17-10 (Algo) Analyzing efficiency and profitability LO P3 The company's income statements for the current year and 1 year ago, follow