The South Division of Wiig Company reported the following data for the current year. Sales $2,950,000 Variable costs 1,958,800 Controllable fixed costs 605,500 Average operating assets 4,912,900 Top management is unhappy with the investment centers return on investment (ROI). It asks the manager of the South Division to submit plans to improve ROI in the next year. The manager believes it is feasible to consider the following independent courses of action. 1. Increase sales by $319,000 with no change in the contribution margin percentage. 2. Reduce variable costs by $154,600. 3. Reduce average operating assets by 3%. (a) Compute the return on investment (ROI) for the current year. (Round ROI to 1 decimal place, e.g. 1.5.) Return on Investment Entry field with correct answer % (b) Using the ROI formula, compute the ROI under each of the proposed courses of action. (Round ROI to 1 decimal place, e.g. 1.5.) Return on investment Action 1 Entry field with incorrect answer % Action 2 Entry field with correct answer % Action 3 Entry field with correct answer %