The following year-end information is for the pension plan for the employees of Ortiz Motors, Inc.

Ortiz estimates that the average remaining service life is 15 years. Ortiz Motor's contribution to the pension fund was $520,000 in 2012 and benefits paid to retirees that year were $280,000.
(i) Calculate the interest cost for 2012.
(ii) Calculate the unexpected gain or loss in 2012.
(iii) Calculate the amortization of the net gain for 2012 using the corridor method.

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12/31/11 12/31/12 Accumulated benefit obligation $2,800,000 $3,760,000 Projected benefit obligation 3,040,000 4,000,000 Fair value of plan assets 3,080,000 3,520,000 (425,000) AOCI-Net (gain) or loss (480,000) $200,000 Actual return on plan assets in 2012: 8% Actuary's discount rate 7% Expected rate of return on assets 6%