You have the following information for Concord Corporation for the month ended October 31, 2022. Concord uses a periodic method for inventory. (a1) x Your answer is incorrect. Calculate the weighted-average cost. (Round answer to 3 decimal places, eg. 5.125.) Weighted-average cost per unit \$ eTextbook and Media Solution List of Accounts (a2) - Your answer is partially correct. 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, eg. 125.) (a3) Calculate gross profit rate under each of the following methods. (1) LIFO. (2) FIFO (3) Average-cost. (Round answers to 1 decimal place, eg. 51.2\%) You have the following information for Concord Corporation for the month ended October 31, 2022. Concord uses a periodic method for inventory. (a1) x Your answer is incorrect. Calculate the weighted-average cost. (Round answer to 3 decimal places, eg. 5.125.) Weighted-average cost per unit \$ eTextbook and Media Solution List of Accounts (a2) - Your answer is partially correct. 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, eg. 125.) (a3) Calculate gross profit rate under each of the following methods. (1) LIFO. (2) FIFO (3) Average-cost. (Round answers to 1 decimal place, eg. 51.2\%)