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You have the following information for Waterway Industries for the month ended October 31, 2022. Waterway uses a periodic method for inventory. Calculate the weighted-average cost, (Round answer to 3 decimal places, es.5.125.) Weighted-average cost per unit Calculate ending inventory, cost of goods sold, gross profit under each of the following method5. (1) LIFO. (2) FIFO. (3) Average-cost. (Round answers to 0 decimal place, eg. 125.) Caculate gross profit rate under each of the following methods. (1) LIFO. (2) FIFO (3) Average-cost. (Round answers to 1 decimol place, es. 51.2\%)