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Warnerwoods Company uses a perpetual inventory system. It entered into the following purchases and sales

transactions for March.

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 $70$ units from beginning inventory, $200$ units from the March $5$ purchase, $50$ units from the

March $18$ purchase, and $90$ units from the March $25$ purchase.