Tirri 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 per Unit Cost per Period $6.75 $3.60 $1.25 $22,900 $1.20 $0.55 $ 7,300 If the selling price is $26.60 per unit, the contribution margin per unit sold is closest to: Multiple Choice $6.60 $16.25