Exercise 20-20 Kreter Co. provides the following information about its postretirement benefit plan for the year 2017. Service cost 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 Discount rate $45,000 10,000 11,000 20,000 110,000 330,000 8%