A company made the following merchandise purchases and sales during the month of May:

May 1 purchased 380 units at $15 each

May 5 purchased 270 units at $17 each

May 10 sold 400 units at $ 50 eaach

May 20 purchased 300 units at $22 each

May 25 sold 400 units at $ 50 each

There was no beginning inventory. If the company uses the weighted average inventory valuation method and the perpetual inventory system, what would be the cost of its ending invenotry?

Please provide me with all calculations and detailed explanation. Put all the info in the table, so it would be easier to understand. Thank you.