fifo, lifo, average, and specific?

Warnerwoods Company uses a perpetual inventory system. it entered into the following purchoses and sales transactions for March. 3. Compute the cost assigned to ending inventory using (d) FIO, (b) LiFO, ( d weighted average, and (d) specific identification. For specific identification, units sold include 80 units from beginning inventory, 340 units from the March 5 purchase, 40 units from the March 18 purchase, and 120 units from the March 25 purchase. \begin{tabular}{|l|l|l|l|} \hline Perpetual FIFO Perpetual LIFo & WeightedAverage & Specific Id \\ \hline \end{tabular} Compute the cost assigned to ending inventory using weighted average. (Round your average cost per unit to 2 decimal places.) Specific Identification