Answer:
$22.86
Explanation:
Model A12 Model B22 Model C124
Selling price per unit $53 $101 $406
Variable costs per unit $45 $81 $315
Contribution margin per unit $8 $20 $91
Weighted-Average Unit Contribution Margin = (Model A12 Contribution margin per unit * Sales mix) + (Model B22 Contribution margin per unit * Sales mix) + (Model C124 Contribution margin per unit * Sales mix)
Weighted-Average Unit Contribution Margin = ($8 * 59%) + ($20 * 27%) + ($91 * 14%)\
Weighted-Average Unit Contribution Margin = $4.72 + $5.4 + $12.74
Weighted-Average Unit Contribution Margin = $22.86