Answer:
Increase in net Operating income = $14,600
Explanation:
Sales
i. 8000 units X $220
=$1,760,000
ii. 8200 units X $220
=$1,804,000
Variables expenses
i. 8000 units X $66 = $528,000
ii8200 units X $72 = $631,400
Contribution margin
CM=Sales -Variables expenses
i. 1,760,000 - 528,000=
$1,232,000
ii. 1,804,000 - 631,400
=$1,172,000
Our Fixed expenses are
i. $991,000
ii. $917,000
Therefore Net operating income = Contribution margin - Fixed expenses
i. 1,232,000 - 991,000
=$241,000
ii. 1,172,600 - 917,000
=$255,600
From the answers above, there is an increase of $14,600 as a difference between $241,000 and $255,600 which are the Net Operating income.