Bonita 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 $23 per unit. None of this inventory was sold in 2019 . Relevant information is as follows. During the year 2020 , the following purchases and sales were made. The company uses the periodic inventory method. (a1) Calculate average-cost per unit. (Round answer to 2 decimal places, e.e. 2.76.) Determine ending inventory under (1) specific identification, (2) FIFO, (3) LIFO, and (4) average-cost. (Round answers to 0 decimal places, e.g. 2,760.)