Paolucci Corporation's relevant range of activity is 6,900 units to 14,500 units. When it produces and sells 10,700 units, its average costs per unit are as follows: Average Cost per Unit Direct materials $ 6.85 Direct labor $ 3.75 Variable manufacturing overhead $ 1.75 Fixed manufacturing overhead $ 3.30 Fixed selling expense $ 1.05 Fixed administrative expense $ 0.75 Sales commissions $ 1.00 Variable administrative expense $ 0.65 If 9,700 units are sold, the variable cost per unit sold is closest to: