Answer:
111%
Step-by-step explanation:
Computation to determine its markup percentage using a total-cost approach
First step
Variable cost per unit= Direct materials+Direct labor+Variable manufacturing overhead+Variable selling and administrative expenses
Variable cost per unit= $30+20+16+18
Variable cost per unit= $84
Second step
Fixed cost per unit= Fixed manufacturing overhead+Fixed selling and administrative expenses
Fixed cost per unit= $42+24
Fixed cost per unit= $66
Now let determine the Variable costing markup percentage
Variable costing markup percentage= (Desired ROI+Fixed cost per unit)*100/Variable cost per unit
Variable costing markup percentage= ($27+66)*100/84
Variable costing markup percentage=110.7 %
Variable costing markup percentage=111% (Approximately)
Therefore its markup percentage using a total-cost approach is 111%