Answer:
B. Decrease by $2,800
Step-by-step explanation:
Direct labor incurred $185,000 for 10,000 units, then it is $18.5 per unit
Direct materials used $160,000 for 10,000 units, then it is $16 per unit
Variable manufacturing overhead $120,000 for 10,000 units, then it is $12 per unit
Variable selling and administrative expenses $70,000 for 10,000 units, then it is $7 per unit
Additional revenue from accepting a special order is $72,000 = 1,200 units x sale price of $60
Additional fixed manufacturing overhead costs is $5,000
Additional variable cost $64,200 = 1,200 units x ($18.5+$16+$7+$12)
So net operating loss from special order is $2,800 = additional revenue of $72,000 – additional fixed cost of $5,000 - Additional variable cost of $64,000