4. Five pounds of a single raw material are required for each unit produced. Each pound of material costs $10. Plans are to have inventory levels for materials equal to 30 percent of the amount of materials needed to satisfy next month's production and 168,000 units of raw material on hand at the end of December. Materials inventory on October 1 was 120,000 pounds. Required: A. Prepare a production budget in units for October, November, and December. B. Prepare a purchase budget in pounds and dollars for October, November, and December.