You have the following information for Metlock Inc. for the month ended October 31, 2022. Metlock uses a periodic method for inventory. Calculate ending inventory, cost of goods sold, gross profit under each of the following methods. (1) LIFO. (2) FIFO. (3) Average-cost. (Round per unit cost to 3 decimal places, e.g. 15.647 and final answers to 0 decimal places, e.g. 5,125.)