E 8-44
If Petoskey drops Conway, overall profit will increase by $5,000. Contribution margin will ↓ links ↓ 300,000 Sales revenue
decrease by $75,000 as a result of the lost contribution margin ($300,000 – $225,000). 300,000 – 225,000 = 75,000 225,000 VC
Note that the fixed expense for depreciation is a sunk cost and not relevant to the
80,000 – 75,000 = 5,000
E 8-45
If Petoskey drops Conway, profit will decrease by $28,000. There will be a decrease of ↓ links ↓ 300,000 Sales revenue
$75,000 as a result of the lost Conway contribution margin ($300,000 – $225,000). Note 300,000 – 225,000 = 75,000 225,000 VC
that the direct fixed expense for depreciation is a sunk cost and not relevant to the 80,000 Salary
decision (i.e., it will remain unchanged whether Conway is kept or dropped). However, Cont. margin(Alanson) 165,000
Petoskey will avoid the $80,000 supervisory salary cost for Conway if it drops Conway. % of customers 20%
Finally, if Petoskey drops Conway, 20% of Alanson’s contribution margin, or $33,000 20% × 165,000 = 33,000
(i.e., 0.20 × $165,000), will also be lost as Conway-loving customers shop elsewhere for
profits are higher with Conway than without Conway.
E 8-46
1. Contribution Margin if HS Is Sold at Split-Off = $9 × 14,000 pounds 9 × 14,000 = 126,000 Units at split-off 14,000
= $126,000 Units of CS 4,000
2. Contribution margin if HS is processed into CS Price at split-off 9