Specific Id Weighted Average FIFO LIFO Determine the cost assigned to ending inventory and to cost of goods sold using weighted average. (Round cost per unit to 2 decimal Weighted Average - Perpetual: January 1 January 10 January 20 Goods Purchased Cost of Goods Sold Date # of units Cost per unit # of units Cost per unit Cost of Goods Sold Inventory Balance Cost per # of units unit Inventory Balance sold 140 at $ 6.00 = $ 840.00 Average cost January 20 January 25 January 30 Totals