Please explain the E20.3 PLZ

E20.2 (LO 1, 2, 3) (Computation of Pension Expense) Veldre Company provides the following information about its defined benefit pension plan for the year 2020. Service cost $ 90,000 Contribution to the plan 105,000 Prior service cost amortization 10,000 Actual and expected return on plan assets 64,000 Benefits paid 40,000 Plan assets at January 1, 2020 640,000 Projected benefit obligation at January 1, 2020 700,000 Accumulated OCI (PSC) at January 1, 2020 150,000 Interest/discount (settlement) rate 10% Instructions Compute the pension expense for the year 2020. E20.3 (LO 1, 2, 3) (Preparation of Pension Worksheet) Using the information in E20.2, prepare a pension worksheet inserting January 1, 2020, balances, showing December 31, 2020, balances, and the journal entry recording pension expense