Frank purchased land containing oil reserves for $425,000. He has calculated his cost depletion for the year to be $20 per barrel for a total of $120,000 in depletion expense. He now needs to calculate his percentage depletion in case it is larger. His gross income from the oil extraction is $600,000 and he has $520,000 in operating expenses before depletion expense. Assuming this is domestic production, the amount of percentage depletion expense is $ . If he uses this method he can deduct $ for tax purposes. He should use the depletion method to maximize his deduction.