For each variable cost per unit listed below, determine the total variable cost when units produced and sold are 50, 100, and 200 units. Direct materials $ 15 Direct labor 30 Variable overhead Sales commission 11 12 Begin by calculating the total variable cost for each variable cost per unit listed, and the total variable cost when sales are 50 units. Then calculate the total variable cost when sales are 100 and 200 units, respectively Variable Cost Variable Cost Variable Cost Variable cost per unit at 50 Units at 100 Units at 200 Units Direct materials 15 Direct labor 30 Variable overhead 11 Sales commission 12 Total variable cost