Compute the cost assigned to ending inventory using $($a$)$ FIFO, $($b$)$ LIFO, $($c$)$ weighted average, and $($d$)$ specific identification. For specific identification, units sold include $85$ units from beginning inventory, $215$ units from the March $5$ purchase, $65$ units from the March $18$ purchase, and $105$ units from the March $25$ purchase.