Oahu Kiki tracks the number of units purchased and sold throughout each accounting period but applies its inventory

costing method at the end of each month, as if it uses a periodic inventory system. Assume Oahu Kiki's records show the

following for the month of January. Sales totaled $240$ units.

Required:

Calculate the number and cost of goods available for sale.

Calculate the number of units in ending inventory.

Calculate the cost of ending inventory and cost of goods sold using the $($a$)$ FIFO, $($b$)$ LIFO, and $($c$)$ weighted average cost

methods.

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Required $2$

Calculate the cost of ending inventory and cost of goods sold using the $($a$)$ FIFO, $($b$)$ LIFO, and $($c$)$ weighted average cost

methods.