just need the ones i got wrong

Periodic Inventory by Three Methods The beginning inventory at Midnight Supplies and data on purchases and sales for a three-month period ending March 31, are as follows: Number Date Transaction Per Unit Total of Units Inventory 7.500 $75.00 Jan. 1 $562,500 10 Purchase 22.500 85.00 1,912,500 28 Sale 11.250 150.00 1,687,500 30 Sale 3,750 150.00 562,500 Feb. 5 Sale 1,500 150.00 225,000 10 Purchase 54,000 87.50 4,725,000 16 Sale 27,000 160.00 4,320,000 2B Sale 25,500 160.00 4,000,000 Mat. 5 Purchase 45,000 89.50 4,027.500 14 Sale 30,000 160.00 4,800,000 25 Purchase 74500 90.00 675,000 30 Sale 26,250 160.00 4,200,000 1. Determine the inventory on March 31 and the cost of merchandise sold for the three month period, using the first-in, first-out method and the periodic inventory system Merchandise inventory, March 31 1,010,625 Cost of merchandise Sold 10,891,375 2. Determine the inventory on March 31 and the cost of merchandise sold for the three-month period, using the last-in, first-out method and the periodic Inventory system Merchandise Inventory, March 31 581,250 Cost of merchandise sold 11,021,250 3. Determine the inventory on March 31 and the cost of merchandise sold for the three month period, using the weighted average cost method and the periodic Inventory system. Round the weighted average unit cost to the nearest cent and final answers to the nearest dollar Merchandie Inventory, March 31 901,000 Costo merdandise old 10,901,250 X 4. Comowe the gross profit and the acha inventoren, wing the following column Headings Enter all amounts as positive numbert LIFO Weighted Average 19.875,000 19,675,000 19,875,000 Cost of merchandise 10,091,025 11.021,250 10,921,525 x C D 1,003,125 11,853,750 0.953,475 x 1,010,625 381.250 901,000V