Pronghorn Corporation produces microwave ovens. The following unit cost information is available: direct materials $38, direct labor $21, variable manufacturing overhead $12, fixed manufacturing overhead $46, variable selling and administrative expenses $10, and fixed selling and administrative expenses $33. Its desired ROI per unit is $27.20. Compute its markup percentage using a total-cost approach. (Round answer to 2 decimal places, e.g. 10.50%) Markup percentage