8-35 DER Depreciation and Amortization 17. MACRS and Averaging Conventions. (Obj. 1) Jan purchased the following properties during 2020. Description Date Placed in Service to Cost New Computer March 9, 2020 $ 6,000 Used Machinery July 17, 2020 70,000 Used Office building September 6, 2020 270,000 DA New Equipment December 27, 2020 84,000 Compute Jan's depreciation for each of these properties for 2020 and 2021. Assume that Jan elected to expense 50% of the cost of each item of qualified property and elected out of bonus depreciation. The machine and equipment are 7-year property