Ehlo Company is a multiproduct firm. Presented below is information concerning one of its products, the Hawkeye. Date Transaction Quantity Price/Cost 1/1 Beginning inventory 2,990 $17 2/4 Purchase 3,990 26 2/20 Sale 4,490 44 4/2 Purchase 4,990 33 11/4 Sale 4,190 48 Calculate average-cost per unit. (Round answer to 2 decimal places, e.g. 2.76.) Average-cost per unit $ Compute cost of goods sold, assuming Ehlo uses: (Round average cost per unit to 2 decimal places, e.g. 2.76 and final answers to 0 decimal places, e.g. 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 $