Answer:
$71,000
Step-by-step explanation:
The computation of operating income is shown below:-
Total costs if company bought = Cost of production × Outside supplier per unit) + (Fixed cost × Remaining percentage)
= (43,000 × $3.80) + ($68,000 × (100% - 30%)) 
= (43,000 × $3.80) + ($68,000 × 70%) 
= $163,400 + $47,600 
= $211,000 
Loss in Income if part is bought = Total costs if company bought - Total costs originally
= $211,000 - $140,000
= $71,000
Therefore, Making profit will be more by $71,000 and for computing the Loss in Income if part is bought we simply applied the above formula.