I need assistance in how to work out the weghted average and the Specific ID

Required information The following information applies to the questions displayed below] Warnerwoods Company uses a perpetual inventory system. It entered into the following purchases and sales transactions for March. 3. Compute the cost assigned to ending inventory using (a) FIFO, (b) LIFO. (c) weighted average, and (c) specific idenufication. For ipecific identification, units sold include 85 units from beginning inventory. 215 units from the March 5 purchase, 65 units from the March 18 purchase, and 105 units from the March 25 purchase. Complete this question by entering your answers in the tabs below. Compute the cost assigned to ending inventory using weighted average. (Round your average cost per unit to 2 decimal places.)