help please E$7-17($Algo$)($Supplement $7$A$)$ Calculating Cost of Ending Inventory and Cost of Goods Sold under Perpetual FIFO and LIFO $[$LO $7-$S$1]$ Oahu Kiki tracks the number of units purchased and sold throughout each accounting period but applies its inventory costing method perpetually at the time of each sale, as if it uses perpetual inventory system. Assume Oahu Kiki's records show the following for the $.$ The company sold $300$ units between January $16$ and $23.$ Required: Calculate the cost of ending inventory and the cost of goods sold using the FIFO ana LIrU methods.