FIFO Perpetual Inventory The beginning inventory at Dunne Co. and data on purchases and sales for a three-month period ending June 30 are as follows: Number Date Transaction of Units Per Unit Total Apr. 3 Inventory 72 $300 $21,600 8 Purchase 144 360 51,840 11 Sale 96 1,000 96,000 30 Sale 60 1,000 60,000 May 8 Purchase 120 400 48,000 10 Sale 72 1,000 72,000 19 Sale 36 1,000 36,000 28 Purchase 120 440 52,800 June 5 Sale 72 1,050 75,600 16 Sale 96 1,050 100,800 21 Purchase 216 480 103,680 28 Sale 108 1,050 113,400