Answer:
$17,000
Step-by-step explanation:
The computation of operating income is shown below:-
Costs to Make = $70 + $60
= $130
Costs to Buy = $77 + ($60 × 0.6)
= $113
Increase in the operating Income = (Costs to Make - Costs to Buy) × Units each year
= ($130 - $113) × 1,000 Units
= $17,000
Therefore for computing the Increase in the operating Income we simply put the above formula.