QS 22-16 Manufacturing: Production budget P12 Atlantic Surf manufactures surfboards. The company's sales budget for the next three months is shown below. In addition, company policy is to maintain finished goods inventory equal (in units) to 40% of the next month's unit sales. As of June 30, the company has 1,600 finished surfboards in inventory, which complies with the policy. Prepare a production budget for the months of July and August July August September Sales (in units) 4,000 6,500 3,500