The beginning inventory at Dunne Co. and data on purchases and sales for a three-month period are as follows: Number of Units Date Transaction Total Per Unit Apr. 3 Inventory 42 $ 375 $ 15,750 8 Purchase 84 450 37,800 11 Sale 56 1,250 70,000 30 Sale 35 1,250 43,750 May 8 Purchase 70 500 35,000 10 Sale 42 1,250 52,500 26,250 19 Sale 21 1,250 28