The following information pertains to Havana Corporation's defined benefit pension plan: ($ in thousands) Projected benefit obligation Plan assets Prior service cost-AOCI Net loss-AOCI 2021 Beginning balances $(6,400) 6, 100 640 $ 760 2022 Beginning balances $(6,904) 6,736 580 $ 826 At the end of 2021, Havana contributed $735 thousand to the pension fund and benefit payments of $634 thousand were made to retirees. The expected rate of return on plan assets was 10%, and the actuary's discount rate is 8%. There were no changes in actuarial estimates and assumptions regarding the PBO. What is Havana's 2021 gain or loss on plan assets