Quantity to Order. On September 1, a company wants to determine the number of units of Material X it should order for November delivery. The production schedule calls for 4,200 units of Material X for September operations, 4,400 units for October, and 4,700 units for November. On September 1, the inventory record shows 4,400 units on hand, 3,600 units on order for September delivery, and 4,500 units on order for October delivery. The inventory needed to begin December production is 3,600 units. LO2 Required: Compute the quantity to be ordered for November delivery.