Answer:
$84,000
Step-by-step explanation:
The calculation of operating income is shown below:-
Sales $252,000
(1,200 × $210)
Variable Manufacturing cost $127,200
(1,200 × $106)
Variable marketing and
administrative cost $40,800
(1,200 × $34)
Incremental profit $84,000
So, the incremental profit is $84,000