Blue Spruce Corporation produces microwave ovens. The following unit cost information is available: direct materials $32, direct labor $25, variable manufacturing overhead $12, fixed manufacturing overhead 548, variable selling and administrative expenses $15, and fixed selling and administrative expenses $28. Its desired ROI per unit is $28.80. Compute its markup percentage using a total-cost approach. (Round answer to 2 decimal places, es. 10.50%) Markup percentage Tavthat