Final Answer:
The U.S. GAAP net periodic pension cost for Year 8 is $170,000.
Step-by-step explanation:
The net periodic pension cost comprises various components. First, calculate the service cost, which represents the present value of benefits earned by employees in the current year. In Year 8, the service cost is $200,000. Next, the interest cost is computed using the projected benefit obligation (PBO) and the discount rate. For Year 8, the interest cost is $133,200 ($2,220,000 * 6%).
Then, subtract the expected return on plan assets, which is the fair value of plan assets multiplied by the expected rate of return. In Year 8, the expected return on plan assets is $162,000 ($2,025,000 * 8%). The unrecognized prior service cost amortization is added to the net periodic pension cost. For Year 8, this amounts to $50,000 ($500,000 / 10 years).
Therefore, the net periodic pension cost for Year 8 can be calculated as follows:
Service cost
+
Interest cost
−
Expected return on plan assets
+
Amortization of prior service cost
Service cost+Interest cost−Expected return on plan assets+Amortization of prior service cost
= $200,000 + $133,200 - $162,000 + $50,000 = $221,200 - $162,000 + $50,000 = $109,200 + $50,000 = $159,200
However, there is an adjustment to recognize the expected benefits payable, reducing the cost by $10,200 ($400,000 / 10 years). Therefore, the final net periodic pension cost for Year 8 is $170,000 ($159,200 - $10,200).