I also did this and 42682, was wrong. Adding or subtracting that from 75k is wrong, i tried deducted 75 k from the first drill bit, it was wrong. I did what ever method i could think of it and I still couldnt get the right answer.

Asset	Purchase Date	Original Basis
Drill bits (5-year)	27-Jan	$92,200	20%	$18,440
Drill bits (5-year)	19-Sep	97,200	20%	$19,440
Commercial building	18-Apr	264,000	1.819%	$4,802
				$42,682
			75000	$32,318

Required information [The following information applies to the questions displayed below.] Dain's Diamond Bit Drilling purchased the following assets this year. Assume its taxable income for the year was $75,000 for purposes of computing the $179 expense (assume no bonus depreciation). (Use MACRS Table 1, Table 2, Table 3, Table 4, and Note: Leave no answer blank. Enter zero if applicable. b. What is Dain's maximum depreciation deduction for the year (including $179 expense)? Note: Round your intermediate calculations and final answer to the nearest whole dollar amount