Wang Company reports the following for the month of June. June $1$ Inventory $12$ Purchase $23$ PurchaseUnits Unit Cost $300500450600750700$Total Cost $150,000270,000525,00030$ Inventory $240$Instructions$($a$)$ Compute the cost of the ending inventory and the cost of goods sold under FIFO Method$($b$)$ Compute the cost of the ending inventory and the cost of goods sold using the average$-$cost method.