PS2 Problem 5-1 5 points The following information pertains to Pugs Company for 2018. Beginning Inventory Units Purchased 150 units @ 450 units @ $21 $12 per unit per unit units at $ 50 per unit Ending inventory consisted of 30 units. Pugs sold 570 All purchases and sales were made with cash. Beginning inventory purchased before year started. a. REQUIRED Compute the gross margin for Pugs Company using the following cost flow assumptions: (1) FIFO, (2) LIFO, and (3) weighted average. b. What is the dollar value of ending inventory for FIFO and Weighted Average? C. Determine the cash flow from operating activities in 2018, using each of the three cost flow assumptions listed in Requirement a. Ignore the effect of income taxes. Explain why these cash flows have no differences