Periodic inventory by three methods The beginning inventory for Dunne Co. and data on purchases and sales for a three-month period are as follows: Date Transaction Number of Units Per Unit Total Apr. 3 Inventory 25 $1,200 $30,000 8 Purchase 75 1,240 93,000 11 Sale 40 2,000 80,000 30 Sale May 8 Purchase 10 Sale 19 Sale 28 Purchase June 5 Sale 16 Sale 21 Purchase 28 Sale 2 + % NUO W 30 2,000 60,000 60 1,260 75,600 50 2,000 100,000 20 2,000 40,000 80 1,260 100,800 40 2,250 90,000 25 2,250 56,250 35 1,264 44,240 44 2,250 99,000 Required: 28 Sa 44 Required: 1. Determine the inventory on June 30 and the cost of goods sold for the three-month period, using the first-in, first-out method and the periodic inventory system. Inventory, June 30 $ Cost of goods sold $ 32,864 310,776 2. Determine the inventory on June 30 and the cost of goods sold for the three-month period, using the last-in, first-out method and the periodic inventory system. Inventory, June 30 $ Cost of goods sold $ 3. Determine the inventory on June 30 and the cost of goods sold for the three-month period, using the weighted average cost method and the periodic inventory system. Round intermediate calculation and final answers to the nearest whole dollar. Inventory, June 30 $ Cost of goods sold $ 4. Compare the gross profit and June 30 inventories using the following column headings. For those boxes in which you must enter subtracted or negative numbers use a minus sign. Weighted Average Sales Cost of goods sold FIFO $ LIFO Gross profit $ Inventory, June 30 $ $