Required: Determine the costs assigned to the December 31 ending inventory based on the FIFO method. Perpetual FIFO: Goods Purchased Cost of Goods Sold Inventory Balance Date # of # of Units Cost Per Unit Goods Purchased Units Cost Per Cost of Goods Unit Sold # of Units Cost Per Unit Inventory Balance k Sold December 7 10 at $6.00 $ 60.00 10 at $ 6.00 = $ 60.00 20 at $ 12.00 $ 240.00 10 at 10 at $ 6.00 = $ 60.00 December 14 Total December 14. December 15 Total December 15 15 at $ 14.00 = $ 210.00 20 at $ 12.00 = 240.00 $ 300.00 10 at $ 6.00 = $ 60.00 20 at $ 12.00 = $ 240.00 December 21 Totals $ 300.00