A company's inventory records contain the following information: Beginning Inventory: 300 units $780 Purchased on June 10 400 units 1,170 Purchased on June 15 500 units 1,260 Purchased on June 28 300 units 990 1,500 $4,200 The company sold 1,000 units during June and 500 units were in its ending inventory on June 30. If the company uses the weighted average inventory costing method, what is the cost of its ending inventory? Group of answer choices $1,365 $1,400 $4,200 $2,700