Kesterson Corporation has provided the following information: Direct materials Direct labor Variable manufacturing overhead Fixed manufacturing overhead Sales commissions Variable administrative expense Fixed selling and administrative expense Cost Cost per per Period Unit $6.20 $3.10 $1.35 $14,000 $1.50 $0.40 $ 4,500 If the selling price is $21.90 per unit, the contribution margin per unit sold is closest to: Multiple Choice $9.35 $5.65 $12.60 $8.45