How to slove the wrong answer I got? ( by using weighted average method)

Required information The following information applies to the questions displayed below. Laker Company reported the following January purchases and sales data for its only product. Activities Date Units Acquired at Cost Units sold at Retail Jan. 1 Beginning inventory 225 units $15.00 3,375 Jan. 10 Sales 175 units $24.00 180 units $14.00 Jan. 20 Purchase 2,520 210 units $24.00 Jan. 25 Sales 350 units $13.50 Jan. 30 Purchase 4,725 755 units 385 units $10,620 Totals The Company uses a perpetual inventory system. For specific identification, ending inventory consists of 370 units, where 350 are from the January 30 purchase, 5 are from the January 20 purchase, and 15 are from beginning inventory hed to ending inventory and to cost of goods sold using welghted average. (Round cost per unit to 2 de- 4.*** Weighted Average-Perpetual: al ssle Goods Purchased Cost of Goods Sold Inventory Balance Cost Cost # of units # of units Date Cost of Goods Sold Cost per unit per unit Inventory Balance # of units sold per unit January 1 225 $3,375.00 15.00 January 10 S 175 $2,625.00 50 @ $ 750.00 15.00 15.00 January 20 180 50 $ 750.00 15.00 15.00 180 @ 2,700.00 15.00 Average cost $3,450.00 230 15.00 January 25 210 s 300.00 $3,150.00 20 15.00 15.00 January $ 300.00 20 @ 350 15.00 15.00 S @ 5,250.00 350 15.00 $5,550.00 $5,775.00 370 Totals 15.00 Required 3 Required 1 Next> 4 of 7