Calculate the weighted-average cost. (Round answer to 3 decimal places, e.g. 5.125.) Weighted-average cost per unit Calculate ending inventory, cost of goods sold, gross profit under each of the following methods. (1) LIFO. (2) FIFO. (3) Average-cost. (Round answers to 0 decimal place, e.g. 125.) eTextbook and Media eTextbook Video List of Accounts Calculate gross profit rate under each of the following methods. (1) LIFO. (2) FIFO. (3) Average-cost. (Round answers to 1 decimal place, e.g. 51.2\%)