A company's inventory records show the following data for the month of July.

Date Activities Units Acquired at Cost Units Sold at Retail

July $1$ Beginning inventory $100$ units @ $$36=$ $$3,600$

July $5$ Purchase $50$ units @ $$39=$ $$1,950$

July $10$ Sale $75$ units @ $$50$

July $20$ Purchase $225$ units @ $$41=$ $$9,225$

July $25$ Sale $200$ units @ $$50$

If the company uses the weighted average method and the perpetual inventory system, what would be the cost of its ending inventory?