on january 15, 2022, dillian purchased the rights to a mineral interest for $3,500,000. at that time, it was estimated that the recoverable units would be 500,000. during the year, 40,000 units were mined and 25,000 units were sold for $800,000. dillian incurred expenses during 2022 of $500,000. the percentage depletion rate is 22%. dillian's depletion deduction for 2022 would be: