Question 4: (total 5 marks: 3 marks for -a- and 2 marks for -b-). The Alpha Division's operating data for the past two years are provided below: Year 1 Year 2 Return on investment 1211 36% Net operating income ? $360,000 Turnover Margin Sales $3,200,000 Alpha Division's margin in Year 2 was 150% of the margin in Year 1. Required : a- Compute the sales for Year 2. (3 marks) b- Interpret the return on investment ROI for year 1. (2 marks)