Swifty Corporation constructed a building at a cost of $30550000. Weighted-average accumulated expenditures were $12500000, actual interest was $1260000 and avoidable interest was $610000. If the salvage value is $2400000, and the useful life is 40 years. depreciation expense for the first full year using the straight-line method is O $719000. O $1031500. O $779000. O $750500.