Current Attempt in Progress Your answer is incorrect. The South Division of Wiig Company reported the following data for the current year. independent courses of action. 1. Increase sales by $300,000 with no change in the contribution margin percentage. 2. Reduce variable costs by $150,000. 3. Reduce average operating assets by 4%. (a) Compute the return on investment (ROI) for the current year. (Round ROI to 2 decimal places, e.g. 1.57\%.) Return on Investment % (b) Using the ROI formula, compute the ROI under each of the proposed courses of action. (Round ROI to 2 decimal places, e.g. 1.57\%.)