Answer:
1. The company should reject the special order.
2. $18,500 will decrease the operating income.
Explanation:
                  Per unit           Total 10,000 units
Incremental revenue $3.90 Â Â Â Â Â Â Â Â $39,000
Cost of incremental
Direct materials     $1.75         $17,500
Direct labor         $2.50           $25,000
Variable manufacturing
overhead         $1.50        $15,000
Total Incremental costs             $ 57,500
Incremental net
Operating income(loss) Â Â Â Â Â Â Â Â Â Â Â Â ($18,500)
Here, we multiply per unit with total 10,000 units
1. The company should reject the special order.
2. $18,500 will decrease the operating income.