During January, a company that uses a perpetual inventory system had beginning inventory, purchases, and sales as follows: Beginning Inventory 100 units at $10 per unit Jan. 5 Purchase 40 units at $12 per unit Jan 15 Purchase 70 units at $13 per unit Jan. 10 Sale 60 units Jan. 25 Sale 50 units Using weighted average, the cost of ending inventory at Jan. 10 was O None of the answers are correct $880 $800 $680 $63420