LIFO Perpetual Inventory The beginning inventory at Dunne Co. and data on purchases and sales for a three-month period are as follows: Number Date Transaction of Units Per Unit Total Apr. 3 Inventory 36 $ 300 $ 10,800 8 Purchase 72 360 25,920 11 Sale 48 1,000 48,000 30 Sale 30 1,000 30,000 May 8 Purchase 60 400 24,000 10 Sale 36 1,000 36,000 19 Sale 18 1,000 18,000 28 Purchase 60 440 26,400 June 5 Sale 36 1,050 37,800 16 Sale 48 1,050 50,400 21 Purchase 108 480 51,840 28 Sale 54 1,050 56,700