UCUS $250,000 Variable 21:23. Computing Markups The predicted annual costs for Mighty Motors are as follows: LO2 Manufacturing Costs Selling and Administrative Costs Variable Fixed. 350,000 Fixed $250,000 550,000 Average total assets for the year are predicted to be $7,500,000 Required a. If management desires a 10% rate of return on total assets, what are the markup percentages based on total variable costs and based on total manufacturing costs? b. If the company desires an 8% rate of return on total assets, what is the markup percentage on total manufacturing costs for (1) unassigned costs and (2) desired profit