- / 15 Calculate the cost of goods sold and ending inventory using FIFO. (HINT: Use two rows to show your cost of goods sold calculation in layers) Purchases Cost of Goods Sold Date Units Cost Total Units Cost Total Apr-01 Beginning Inventory 29 $10 $290 Apr-15 41 $12 $492 Apr-20 29 $ $ 3 $ $ Apr-23 35 $13 $455