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