Ben Gordon Corporation constructed a building at a cost of $277. Wt. Average accumulated expenditures were $4,000,000, actual interest was $600.000, and avoidable interest was $300,000. If the salvage value is $800,000, and the useful life is 40 years. depreciation expense for the first full year using the straight-line method is $237,500, then what were the total actual costs of construction