The following incomplete (columns have missing amounts) pension spreadsheet is for Old Tucson Corporation (OTC). ($ in millions) Debit (Credit) Beginning balance Service cost Interest cost Expected return on assets Gain/loss on assets Amortization of: Prior service cost Net gain/loss Loss on PBO Contributions to fund Retiree benefits paid Ending balance Prior Plan Service Net Pension Net Pension PBO Assets Cost (Gain) Loss Expense Cash (Liability)/Asset (540) 70 (29) 51 (621) What was the prior service cost at the beginning of the year? (51) 312 (10) 66 (3) 29 90 74 (27) (27) (310)

The folowing incomplcte \{coluans have mbsing amounts\} pension spreadstieet is for Old fucson Corporabon (OrC) What was the prior seivice cost at the beginning of the yoar? What was the priot service cost at the beginning of the year? Muftple Cnoice 369 minion 566 miton 556 menon $76 mution