Aircard Corporation tracks the number of units purchased and sold throughout each accounting period but applies its inventory costing method at the end of each period as if it uses a periodic inventory system. The following are the transactions for the month of July.

Units Unit Cost

July $1$ Beginning Inventory $2,500$ $ $35$

July $5$ Sold $1,500$

July $13$ Purchased $6,50039$

July $17$ Sold $3,500$

July $25$ Purchased $8,50041$

July $27$ Sold $5,500$

Calculate the cost of goods available for sale, ending inventory, and cost of goods sold if Aircard uses $($a$)$ FIFO, $($b$)$ LIFO, or $($c$)$ weighted average cost. $($Round "Cost per Unit" to $2$ decimal places.$)$