please show formulas + steps. Thanks in advanced

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 3,980 $18 2/4 Purchase 4,000 21 2/20 Sale 4,200 4/2 Purchase 5,250 23 7/17 Purchase 3,100 25 11/4 Sale 5,900 Compute cost of goods sold, assuming Ehlo uses: 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 (1) Perpetual system, moving-average cost flow tt ta ta ta ta ta