The following information is taken from the inventory records of the CNB Company for the month of September: Required: 1. Assuming that CNB uses a periodic inventory system and employs the average cost method, determine cost of goods sold for September and September's ending inventory. 2. Assuming that CNB uses a perpetual inventory system and employs the average cost method, determine cost of goods sold for September and September's ending inventory. Complete this question by entering your answers in the tabs below. Complete this question by entering your answers in the tabs below. Assuming that CNB uses a periodic inventory system and employs the average cost method, determine cost of goods sold for September inventory. (Round cost per unit to 2 decimal places.) Assuming that CNB uses a perpetual inventory system and employs the average cost method, determine cost of goods sold for September and September's ending inventory. (Enter inventory reductions for sales with a minus sign. Round cost per unit to 2 decimal places.)