Answer:
$36,000 increase
Step-by-step explanation:
The computation of the overall effect on the company's monthly net operating income of this change is shown below:
Particulars Current Proposed
Unit sales 9,000 units 9,400 units
Sales $1,620,000 $1,692,000
(9,000 units × $180) (9,400 units × $180)
less: variable cost -$324,000 -$470,000
(9,000 units × $36) (9,400 units × $50)
Contribution margin $1,296,000 $1,222,000
Less: fixed cost -$1,044,000 -$934,000
Net operating income $252,000 $288,000
Hence, there is an increase in net operating income by
= $288,000 - $252,000
= $36,000