The following information is taken from the inventory records of the CNB Company for the month of September: Beginning inventory, 9/1/2021 6,000 units @ $11.00 Purchases: 9/7 5,000 units @ $11.00 9/25 9,000 units @ $11.40 Sales: 9/10 8,000 units 9/29 9, 200 units 2,800 units were on hand at the end 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. Perpetual Average Inventory on hand # of units Inventory unit Value Cost per # of units sold Cost of Goods Sold Average Cost Cost of Goods Sold per unit 0 0 Beginning Inventory Purchase - September 7 Subtotal Average Cost Sale - September 10 Subtotal Average Cost Purchase - September 25 Subtotal Average Cost Sale - September 29 Total 0 0 0 $ 0 0 $ 0