Compute the cost assigned to ending inventory usint $($a$)$ FIFO, $($b$)$ LIFO, $($c$)$ weighted average, and $($d$)$ specific Identification. For specific Identification, units sold include $120$ units from beginning inventory, $250$ units from March $5$ purchase, $100$ units from the March $18$ purchase, and $140$ units from the March $25$ purchase.