Brault Corporation has provided the following information: Cost per Unit Cost per Period Direct materials $ 6.85 Direct labor $ 3.85 Variable manufacturing overhead $ 1.25 Fixed manufacturing overhead $ 97,200 Sales commissions $ 1.00 Variable administrative expense $ 0.55 Fixed selling and administrative expense $ 40,500 If 10,000 units are sold, the variable cost per unit sold is closest to: