Show all work Using the perpetual inventory system calculate the ending inventory under each of the following independent situations: Beginning Inventory 400 units @ 4 January purchase 100 units @$5 February purchase 200 units @$6 March purchase 300 units @$7 used 301 units Weighted Average Show all work FIFO LIFO Determine the ending inventory using the weighted average method FIFO using the same data above determine the ending inventory using FIFO cost flow assuming 125 units sold for $7 each LIFO using the same data above determine the ending inventory using the LIFO cost flow assuming 50 units are sold for $10each