I need help fixing the ones I got wrong

Oahu Kiki tracks the number of units purchased and sold throughout each accounting period but applies its inventory costing method at the end of each month, as if it uses a periodic inventory system. Assume Oahu Kiki's records show the following for the month of January. Sales totaled 290 units. Beginning Inventory Purchase Purchase Date January 1 January 15 January 24 Units 240 450 210 Unit Cost $ 70 80 100 Total Cost $16,800 36,000 21,000 Required: 1. Calculate the number and cost of goods available for sale. 2. Calculate the number of units in ending inventory. 3. Calculate the cost of ending inventory and cost of goods sold using the (a) FIFO, (b) LIFO, and (c) weighted average cost methods. Answer is complete but not entirely correct. Complete this question by entering your answers in the tabs below. Required 1 Required 2 Required 3 Calculate the cost of ending inventory and cost of goods sold using the (a) FIFO, (b) LIFO, and (c) weighted average cost methods. FIFO LIFO Weighted Average Cost Cost of Ending Inventory 53,000 $ 29,600 $ 38,633 X $ Cost of Goods Sold 20,800 27,400 18,366 X $ $ Aircard Corporation tracks the number of units purchased and sold throughout each accounting period but applies its inventory costing method at the end of each period as if it uses a periodic inventory system. The following are the transactions for the month of July Unit Cost $20 July 1 July 5 July 13 July 17 July 25 July 27 24 Units 2,000 1,000 6,000 3,000 8,000 5,000 Beginning Inventory Sold Purchased Sold Purchased Sold 26 Calculate the cost of goods available for sale, ending inventory, and cost of goods sold if Aircard uses (a) FIFO, (b) LIFO, or (c) weighted average cost. (Round "Cost per Unit" to 2 decimal places.) Answer is complete but not entirely correct. Weighted FIFO LIFO Average Cost Cost of Goods Available for Sale $ 392,000$ 392,000 392,000 Ending Inventory 160,000 X 182,000 X 171,500 Cost of Goods Sold $ 232,000 X $ 210,000 $ 220,500