The Piney Copper Company purchased an ore bearing tract of land for $7,500,000. The geologist for Piney estimated the recoverable copper reserves to be 450,000 tons. During the first year, 50,000 tons were mined and 40,000 tons were sold for $4,000,000. Expenses (not including depletion allowances) were $2,500,000. What are the percentage depletion and the cost depletion allowances?