Bolton's inventory records show the following data at January 31: Beginning inventory Jan. 1 50 units at $20 per unit Jan. 10 purchase 100 units at $15 per unit Jan. 22 purchase 70 units at $10 per unit At January 31, 80 units are still on hand. What is the cost of the ending inventory at January 31 if Bolton uses the LIFO method? O $850 O $1,150 O $1,750 $1,450