assign/view.php?id=1074290 Alpha Corporation began operations on December 1, 2019. The only inventory transaction in 2019 was the purchase of inventory on December 10, 2019, at a cost of $20 per unit. None of this inventory was sold in 2019. Relevant information for fiscal 2020 is as follows: Ending inventory units: Total December 31, 2019 100 December 31, 2020 by purchase date December 2, 2020 100 July 20, 2020 30 130 ma During 2020, the following purchases and sales were made: Purchases Sales March 15 300 units @ $24 per unit April 10 200 July 20 300 units @ $25 per unit August 20 300 170 September 200 units @ $28 per unit November 18 4 December 2 100 units @ $30 per unit December 12 200 d 700 The company uses the periodic inventory method. Determine the ending inventory under the following (rounding to 2 decimal places): Required 1. Specific identification 2. FIFO 3. Weighted average cost