Answer:
Net operating income= $207,500
Step-by-step explanation:
The variable costing method incorporates all variable production costs (direct material, direct labor, and variable overhead).
First, we will determine the total unitary variable overhead:
total unitary variable overhead= 90 + 25= $115
Now, we can calculate the total contribution margin:
Total CM= 11,500*(220 - 115)
Total CM= $1,207,500
Finally, the net operating income:
Net operating income= 1,207,500 - 600,000 - 400,000
Net operating income= $207,500