Required information [The following information applies to the questions displayed below] A company began January with 6.000 units of its principal product. The cost of each unit is $6. Inventory transactions for the month of January are as follows: - Includes purchase price and cost of freight. 8,000 units were on hand at the end of the month Required: 1. Calculate January's ending inventory and cost of goods sold for the month using FiFO, periodic system