the mine costing $225,200. Both the ore and machinery will have no salvage value after the ore is completely mined. Montana mines and sells 160,800 tons of ore during the year. Prepare the December 31 year-end entries to record both the ore deposit depletion and the mining machinery depreciation. Mining machinery depreciation should be in proportion to the mine's depletion. Note: Do not round intermediate calculations. Round your final answers to the nearest whole number.