Crest Products expects the following sales of its single product: Required: Crest has an ending finished goods inventory policy of 30% of the next month's sales needs. September 1 inventory is projected to be 5,700 units. Each finished unit requites 2 units of Component X and 3 units of Component Z. August 1 materials inventory includes 4,000 units of Component X and 156,000 units of Component Z. Crest desires to maintain a Component X inventory equal to 10% of next month's production needs and a Component Z inventory equal to 20% of next month's production needs. a. Prepare a production budget for Crest for the quarter ending December 31