Salmone Company reported the following purchases and sales of its only product. Salmone uses a periodic inventory system. Determine the cost assigned to the ending inventory using FIFO. Date Activities Units Sold at Retail May $1$ May $5$ Beginning Inventory Purchase Units Acquired at Cost $154$ units @ $$10=$ $$1,540224$ units @ $$12=$ $$2,688$ May $10$ Sales. $144$ units @ $$20$ May $15$ Purchase $104$ units @ $$13=$ $$1,352$ May $24$ Sales. $94$ units @ $$21$