Cullumber Lighting had a beginning inventory of 12 units at a cost of $ 7 per unit on August 1. During the month, the following purchases and sales were made. Purchases Sales August 5 August 2 7 units 17 units at $ 8 27 units at $ 9 August 11 August 10 12 units August 23 22 units at $ 10 August 19 42 units August 21 12 units Cullumber uses a periodic inventory system. Determine ending inventory and cost of goods sold under: 1. FIFO and 2. LIFO. FIFO LIFO 1. Ending inventory 2 Cost of goods sold $ S