Please write in steps so I can understand it easily.

INVENTORY Beginning inventory 9 units@ $15 each Feb 4 purchased 15 units @ $20 each Feb 20 purchased 10 units @ $23 each Feb 22 sold 15 units@ $45 each Calculate the Gross profit, ending inventory, cost of goods sold using FIFO, LIFO FIFO: FIRST IN FIRST OUT LIFO: LAST IN FIRST OUT