Answer:
$80,412
Step-by-step explanation:
The calculation of post retirement benefit expense is shown below:-
Post retirement benefit expense = Service cost + Interest cost - Actual return + Amortization of Prior service cost
= $83,900 + ($756,400 × 8%) - $67,100 + $3,100
= $83,900 + $60,512 - $67,100 + $3,100
= $80,412
Therefore for computing the post retirement benefit expense we simply applied the above formula.