Answer: $570,000
Step-by-step explanation:
The amount of pension expense for 2016 is calculated below:
Service cost = $450,000
Add: Interest on projected benefit obligations = 10% × 4,800,000 = $480,000
Less: Expected return on plan assets = 10% × $4,200,000 = $420,000
Add: Amortization of prior service cost = $60,000
Pension expense = $570,000