Do It! Review 10-4 The service division of Raney Industries reported the following results for 2020. Sales Variable costs $497,000 298,200 94,040 582,000 Controllable fixed costs Average operating assets Management is considering the following independent courses of action in 2021 in or maximize the return on investment for this division. 1. Reduce average operating assets by $145,500, with no change in controllable ma 2. Increase sales $157,140, with no change in the contribution margin percentage. Compute the controllable margin and the return on investment for 2020. Controllable margin $ Return on investment for 2020 % LINK TO TEXT Compute the controllable margin and the expected return on investment for 2021 for proposed alternative. (Round ROI to 1 decimal place, e.g. 1.5%.) Alternative 1 Alternative 2 The controllable marain Compute the controllable margin and the expected return on investment for 2021 for each proposed alternative. (Round ROI to 1 decimal place, e.g. 1.5%.) Alternative 1 Alternative 2 The controllable margin $ The expected return on investment % %