Blue Spruce Corporation produces microwave ovens. The following unit cost information is available: direct materials $40. direct labor $21, variable manufacturing overhead $14, fixed manufacturing overhead $45, variable selling and administrative expenses $14, and fixed selling and administrative expenses $26. Its desired ROI per unit is $28.80. Compute its markup percentage using a total-cost approach. (Round answer to 2 decimal places, eg. 10.50%) Markup percentage %