Brief Exercise 9.11 Schuman Corporation produces microwave units. The following per-unit cost information is available: direct materials $36; direct labour $23; variable manufacturing overhead $18; fixed manufacturing overhead $40; variable selling and administrative expenses $13; and fixed selling and administrative expenses $30. Its desired ROI per unit is $29.90. Calculate the markup percentage using variable-cost pricing. (Round answer to 2 decimal places, e.g. 15.25%.) Markup percentage % Question Attempts: 0 of 2 used