Need help fixing problem for what im missiing

A company reports the following beginning inventory and two purchases for the month of January. On January 26, the company sells 420 units. Ending inventory at January 31 totals 170 units. Beginning inventory on January 1 Purchase on January 9 Purchase on January 25 Units 380 90 120 Unit Cost $ 3.70 3.90 4.00 Required: Assume the perpetual inventory system is used. Determine the costs assigned to ending inventory when costs are assigned based on the FIFO method. Perpetual FIFO: Goods purchased Inventory Balance Cost per Cost of Goods Sold # of units Cost per Cost of Goods unit Sold sold # of units Date # of units Cost per unit unit Inventory Balance January 1 380 @ $ 3.70] = $1,406.00 January 9 90 @ $ 3.90 380 @ $ 3.70 = $1,406.00 901 @ $ 3.90 = 351.00 $1,757.00 January 25 1201 @ $ 4.00 380) @ $ 3.70 = $1,406.00 351.00 90 @ $ 3.90 = 1201 @ $ 4.00 = 480.00 $2,237.00 January 26 380@ $ 3.70 = @ $1,406.00 156.00 $ 3.70 = $ 3.90 = 40 @ $ 3.90 = 501 @ 195.00 @ $ 4.00 = 0.00 @ $ 4.00 = Totals $1,562.00 $ 195.00