11-33 Special Order (45-60 min)
1. In general, relevant cost equals the sum of out-of-pocket costs (variable
+ fixed), plus opportunity cost (if any). In the present case, these costs
total $147,500, as follows:
Out-of-Pocket Costs:
Variable costs:
Manufacturing cost (@ $17 per unit) $85,000
Opportunity Cost:
No. of lost unit sales (if any) 3,000
CM per unit, regular sales:
Selling price, per unit $40.00
Variable manufacturing cost $17.00
2. Operating income with the special order will decrease by $17,500. The
only relevant variable cost is the $17 variable manufacturing cost per
full. Thus, if the special order is accepted, there would be a sales loss of
3,000 units to regular customers.
Contribution margin lost (foregone) on 3,000 units of lost sales
= (price – variable manufacturing cost – variable selling cost) × # lost
units
= ($40 − $17 − $3) × 3,000 units = $60,000
Summary of relevant costs:
Variable manufacturing costs ($17 × 5,000) $ 85,000
One-time (fixed) delivery costs 2,500