help with all 4required steps , thanks :()

[The following information applies to the questions displayed below] Laker Company reported the following January purchases and sales data for its only product. The Company uses a perpetual inventory system. For specific identification, ending inventory consists of 245 units, where 210 are from the January 30 purchase, 5 are from the January 20 purchase, and 30 are from beginning inventory. Required: Complete the table to determine the cost assigned to ending inventory and cost of goods sold using specific identification. Determine the cost assigned to ending inventory and to cost of goods sold using weighted average. Determine the cost assigned to ending inventory and to cost of goods sold using FIFO. Determine the cost assigned to ending inventory and to cost of goods sold using LIFO. Complete the table to determine the cost assigned to snding inventory and cost of goods sold using specific identification. fRound cost places.) Determine the cost assigned to ending inventory and to cost of goods sold using weighted average. (Round cost per Perpetual FIFO: Perpetual LIFO