($ in thousands) Net gain-AOCI $248 Accumulated benefit obligation 1,570 Projected benefit obligation 1,500 Fair value of plan assets 1,500 Average remaining service period of active employees (expected to remain constant for the next several years) 14years The rate of return on plan assets during 2021 was 8%, although it was expected to be 10%. The actuary revised assumptions regarding the PBO at the end of the year, resulting in a $27,000 decrease in the estimate of that obligation. Required: 1. Calculate any amortization of the net gain that should be included as a component of net pension expense for 2021. 2. Assume the net pension expense for 2021, not including the amortization of the net gain component, is $329,000. What is pension expense for the year? 3. Determine the net loss-AOCI or net gain-AOCI as of January 1, 2022. (For all requirements, enter your answers in thousands (i.e. 200,000 should be entered as 200).) 1. Amount amortized to 2021 pension expense 2. Pension expense 3. -AOCI, end of 2021 (beg. of 2022) ($ in thousands)