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On April 17, 2021, the Loadstone Mining Company purchased the rights to a coal mine. The purchase price plus additional costs necessary to prepare the mine for extraction of the coal totaled $5,640,000. The company expects to extract 940,000 tons of coal during a four-year period. During 2021, 244,000 tons were extracted and sold immediately.
Required:
1. Calculate depletion for 2021.