A company's detailed inventory record for the month of February is as follows: Date Description Units Cost per Unit Total Cost February 1 Beginning inventory 60 $70 $ 4,200 February 6 Purchase 40 $50 $ 2,000 February 18 Purchase 30 $46 $ 1,380 Additional Information: On February 9, 90 units were sold On February 26, 18 units were sold Question: Using the perpetual weighted-average method, what should be the total cost of its ending inventory at the end of February?