Please help me out with the correct solution to questions 3 & 4

Use the following information for the Exercises 3-7 below. (Static) [The following information applies to the questions displayed below.] Laker Company reported the following January purchases and sales data for its only product. For specific identification, ending inventory consists of 180 units from the January 30 purchase, 5 units from the January 20 purchase, and 15 units from beginning inventory. Determine the cost assigned to ending inventory and to cost of goods sold using FIFO. 1. Complete the table to determine the cost assigned to ending inventory and cost of goods sold using specific identification. 2. Determine the cost assigned to ending inventory and to cost of goods sold using weighted average. 3. Determine the cost assigned to ending inventory and to cost of goods sold using FIFO. 4. Determine the cost assigned to ending inventory and to cost of goods sold using LIFO. \begin{tabular}{|c|c|c|c|c|c|c|c|c|c|} \hline \multicolumn{10}{|c|}{ PerpetualLifo: } \\ \hline \multirow[b]{2}{*}{ Date } & \multicolumn{2}{|c|}{ Coods Purchased } & \multicolumn{3}{|c|}{ Cost of Goods Sold } & \multicolumn{4}{|c|}{ Inventory Balance } \\ \hline & E of units & \multirow[t]{2}{*}{\begin{tabular}{l} Cost \\ per \\ unit \end{tabular}} & \begin{tabular}{c} Nof units \\ sold \end{tabular} & \multirow[t]{2}{*}{\begin{tabular}{l} Cost \\ per \\ unit \end{tabular}} & \begin{tabular}{c} Cost of \\ Goods Sold \end{tabular} & \multicolumn{2}{|c|}{ N of units } & \multirow{2}{*}{\begin{tabular}{c} Cost \\ per \\ unit \\ $6.00 \end{tabular}} & \begin{tabular}{l} Inventory \\ Balance \end{tabular} \\ \hline January 1 & & & & & & 140 & at & & =540.00 \\ \hline \multicolumn{10}{|l|}{ January 10} \\ \hline \multirow[t]{2}{*}{ January 20} & & & & & & & & & \\ \hline & & & 4 & & z & & & & \\ \hline \multicolumn{10}{|l|}{\begin{tabular}{l} Total January \\ 20 \end{tabular}} \\ \hline \multicolumn{10}{|l|}{ January 25} \\ \hline & & & & & E & 2 & & & \\ \hline \multicolumn{10}{|l|}{\begin{tabular}{l} Total January \\ 25 \end{tabular}} \\ \hline \multirow{2}{*}{\multicolumn{10}{|c|}{ January 30}} \\ \hline & & & & & & & & & \\ \hline & & & & & & & & & \\ \hline Tolails & & & & & & & & & \\ \hline \end{tabular}