For $42,550,000, Wesco Developers purchased land which their experts believe to contain 28.5 million tons of copper ore. It cost $12,443,000 to develop the property, whose residual value is estimated as $5,985,000. Determine the current year depletion expense (in $) if annual production amounted to 4,847,000 tons. Round depletion cost per unit to the nearest cent.