please show work and make sure answer is rounded to four decimal places

Date Transaction Quantity Price/Cost 1/1 Beginning inventory 1,900 $15 2/4 Purchase 2,900 23 2/20 Sale 3,400 38 4/2 Purchase 3,900 29 11/4 Sale 3,100 42 LA Cost of goods sold (a) Periodic system, FIFO cost flow $ (b) Perpetual system, FIFO cost flow (c) Periodic system, LIFO cost flow tA (d) Perpetual system, LIFO cost flow $ $ (e) Periodic system, weighted average cost flow (f) Perpetual system, moving average cost flow $