Answer:
$18,000
Step-by-step explanation:
The computation of overall effect on the company's monthly net operating income is shown below:-
Current Proposed
Sales $800,000 $837,000
(200 × 4000) (200 - 14) × (4,000 + 500)
Variable expenses $160,000 $180,000
(40 × 4000) (40 × (4,000 + 500))
Contribution margin $640,000 $657,000
Fixed expenses $531000 $566,000
($531,000 + $35,000)
Net operating
income $109,000 $91,000
Decrease in net operating income = Current - Proposed
= $109,000 - $91,000
= $18,000
So, for computing the overall effect on the company's monthly net operating income we simply applied the above formula.