Paolucci Corporation's relevant range of activity is 5,700 units to 12,500 units. When it produces and sells 9,100 units, its average costs per unit are as follows: Average Cost por Unit 232 Direct materials, $ 6.65 Direct labor $ 3.55 Variable manufacturing overhead $ 1.55 Fixed manufacturing overhead $ 2.50 Fixed selling expense. Fixed administrative expense Sales commissions Variable administrative expense $ 1.50 $ 0.55 $1.45 $ 0.45 If 8,100 units are sold, the variable cost per unit sold is closest to: