Your firm uses 150% depreciation. Assets purchased between the 1st and 15th of the month are depreciated for the entire month; assets purchased after the 15th of the month are treated as though they were acquired the following month. On March 12, 20X1, your company purchases a machine for $200,000 that it estimates will last 10 years and have a salvage value of $60,000. What is 20X1 depreciation expense? $30,000 $17,500 $25,000 $21,000