Blossom Corporation produces microwave units. The following per-unit cost information is available: direct materials $35; direct labour $25; variable manufacturing overhead $17; fixed manufacturing overhead $43; variable selling and administrative expenses $16; and fixed selling and administrative expenses $27. Its desired ROI per unit is $30.44. Calculate the markup percentage using variable-cost pricing. (Round answer to 2 decimal places, e.g. 15.25%.)

Markup percentage?