-uiz i Saved The following incomplete (columns have missing amounts) pension spreadsheet is for Old Tucson Corporation (OTC). Help Save & Exit Submit Prior ($ in millions) debit (Credit) PBO Net Plan Service (Gain) Pension Assets Cost loss Expense Cash Net Pension (Liability)/Asset Beginning balance (450) 48 Service cost 47 Interest cost Expected return on assets (18) Gain/loss on assets Amortization of: Prior service cost Net gain/loss Loss on PBO (20) Contributions to fund Retiree benefits paid Ending balance (2) (1.25) 20 (41) (258) 33 (33) (518) 260 44 63 What was the balance of the net pension asset/liability reported in the balance sheet at the end of the previous year?