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Date Transaction 1/1 Beginning inventory 2/4 Purchase 2/20 Sale 4/2 Purchase 11/4 Sale Quantity Price/Cost 1,200 $13 2,200 20 2.700 34 3.200 26 2,400 37 (a) Your answer is correct. Calculate average-cost per unit. (Round answer to 4 decimal places, eg. 2.7613.) Average-cost per unit $ 21.6364 e Textbook and Media (b) Compute cost of goods sold, assuming Nash uses: (Round average cost per unit to 4 decimal places, eg. 2.7631 and final answers to decimal places, eg. 6,548.) Cost of goods sold (a) Periodic system, FIFO cost flow $ (b) Perpetual system, FIFO cost flow $ (c) Periodic system, LIFO cost flow $ (d) Perpetual system, LIFO cost flow $ (e) Periodic system, weighted average cost flow $ (f) Perpetual system, moving average cost flow $