Answer:
a) If Alpine accepts special order, then its profit will increase $1,360,000
b) I don't agree with the decision to reject the special order because the profit will increase without any extra cost.
Step-by-step explanation:
As current operation (reject special order), the company can make profit = revenue - fixed cost - variable cost, in which fixed cost is applied to full capacity (410,000 units), while revenue and variable cost apply for current producing and selling only ($330,000 units).
Profit = $399*330,000 - ($164+$78)*330,000 - ($40+$21)*410,000
= $26,800,000
If the company accept the special order, the new profit = current profit + (sales - variable cost) x number unit of special order
= $26,880,000 + ($250 - $164 - $52)*40,000
= $28,160,000
So the increase = profit before special order - profit with special order = $28,160,000 - $26,800,000 = $1,360,000