The defined benefit pension plan of Best Value Transport included the following balance at January 1, 2021 (Sin millions): $720 $690 Projected benefit obligation at January 1, 2021 Plan assets at fair value at January 1, 2021 Prior service cost--AOCI at January 1, 2021 Net gain---AOCI $40 $82 Information regarding the defined benefit pension plan of Best Value Transport included the following for 2021 (S in millions): Service cost $43 Interest cost $11 $9 $52 $21 Gain from change in actuarial estimates in PBO Retiree benefits paid (end of year) Actual return on plan assets Expected return on plan assets Employer's cash contribution (end of year) Amortization of prior service costs.-AOCI Amortization of net gain AOCI $25 569 $4 SI What is Best Value's plan assets at December 31, 2021? Do not add dollar sign do not add comma by yourself to your amount round the answer to the whole maberentesourar millions