Compute cost of goods sold, assuming Wildhorse uses: (Round average cost per unit to 4 decimal places, e.g. 2.7631 and final answers to 0 decimal e.g. 6,548.) Cost of goods sold | (a) Periodic system, FIFO cost flow 0 (b) Perpetual system, FIFO cost flow 0 (c) Periodic system, LIFO cost flow 0 (d) Perpetual system, LIFO cost flow 0 (e) Periodic system, weighted average cost flow $ (f) Perpetual system, moving average cost flow $