Grouper Co. provides the following information about its postretirement benefit plan for the year 2017 Service cost Prior service cost amortization Contribution to the plan Actual and expected return on plan assets Benefits paid Plan assets at January 1, 2017 Accumulated postretirement benefit obligation at January 1, 2017 Accumulated OCI (PSC) at January 1, 2017 Discount rate $86,000 3,100 54,200 58,700 41,900 702,500 758,600 96,700 Dr 9% Prepare a worksheet inserting January 1, 2017, balances, showing December 31, 2017, balances, and the journal entry recording postretirement benefit expense. (Enter all amounts as positive.)