Lens Junction sells lenses for $44 each and is estimating sales of 16,000 units in January and 17,000 in February. Each lens consists of 2 pounds of silicon costing $2.50 per pound, 3 oz of solution costing $3 per ounce, and 45 minutes of direct labor at a labor rate of $20 per hour. Desired inventory levels are: Jan. 31 Feb. 28 Mar. 31 Beginning inventory Finished goods 4,700 4,700 4,900 Direct materials: silicon 8,600 9,000 9,100 Direct materials: solution 11,100 11,800 12,800 Prepare a sales budget.