Dimitri owns a gold mine that qualifies for a 15% percentage depletion rate. The basis of the property at the beginning of the year, prior to any current-year depletion deduction, is $34,500. Gross income from the property for the year is $310,500, and taxable income before depletion is $103,500. What is Dimitri's AMT depletion preference? For AMT purposes, Dimitri has a tax preference of $