In 2019, Eldenburg Mining Company purchased land for $7,200,000 that had a natural resource reserve estimated to be 500,000 tons. Development and road construction costs on the land were $420,000, and a building was constructed at a cost of $50,000. When the natural resources are completely extracted, the land has an estimated residual value of $1,200,000. In addition, the cost to restore the property to comply with environmental regulations is estimated to be $800,000. Production in 2019 and 2020 was 60,000 tons and 85,000 tons, respectively. a. Compute the depletion charge for 2019 and 2020. (You should include depreciation on the building, if any, as part of the depletion charge.) (Do not round the depletion rate.)