For both the Current Year and $1$ Year Ago, compute the following ratios:

$(1-$a$)$ Compute profit margin ratio for the current year and one year ago.

$(1-$b$)$ Did profit margin improve or worsen in the Current Year versus $1$ Year Ago? $(2)$ Compute total asset turnover for the current year and one year ago. $(3-$a$)$ Compute return on total assets for the current year and one year ago.

$(3-$b$)$ Based on return on total assets, did Simon's operating efficiency improve or worsen in the Current Year versus $1$ Year Ago?