Compute the cost assigned to ending inventory using $($a$)$ FIFO, $($b$)$ LIFO, $($c$)$ weighted average, and $($d$)$ specific identification. For specific identification, units sold consist of $670$ units from beginning inventory, $370$ from the February $10$ purchase, $270$ from the March $13$ purchase, $120$ from the August $21$ purchase, and $390$ from the September $5$ purchase.Montoure Company uses a periodic inventory system. It entered into the following calendar$-$year purchases and sales transactions.