With the information above, ending inventory, COGS and gross profit assuming you are using perpetual inventory and LIFO method

Number of Units 25 75 40 30 60 50 20 80 40 25 35 Per Unit $1,200 1,240 2,000 2,000 1,260 2,000 2,000 1,260 2,250 2,250 1,264 2,250 Total 30,000 93,000 80,000 60,000 75,600 100,000 40,000 100,800 90,000 56,250 44,240 99,000 Date Transaction Apr. 3 Inventory 8 Purchase 11 Sale 30 Sale May 8 Prchase 10 Sale 19 Sale 28 Purchase June 5 Sale 16 Sale 21 Purchase 28 Sale With the information above, ending inventory, COGS and gross profit assuming you are using perpetual inventory and LIFO methood