Macy Corporation's relevant range of activity is 6,000 units to 13,000 units. When it produces and sells 9,500 units, its average costs per unit are as follows: Direct materials Direct labor Variable manufacturing overhead Fixed manufacturing overhead Fixed selling expense Fixed administrative expense Sales commissions Variable administrative expense Average Cost per Unit $5.15 $3.60 $1.60 $2.60 $0.90 $0.60 $0.85 $8.50 If the selling price is $28.50 per unit, the contribution margin per unit sold is closest to: Multiple Choice of the selling price is $28.50 per unit, the contribution margin per unit sold is closest to: Multiple Choice $6.55