Answer:
$9.79
Step-by-step explanation:
The computation is shown below:
Particulars WX KD FS
Selling price per unit (i) $335.03 $228.31 $199.06
Less:
Variable cost per unit (ii) $259.56 $173.38 $159.91
Contribution margin per unit $75.47 $54.93 $39.15
Divided by
Minutes on the constraint (iv) 6 4.30 4
Contribution margin per minute $12.58 $12.77 $9.79