I want to know question a7 and b

Direct Direct materials inventory, June 1. Conversion costs, June. Work-in-progress inventory, June30. Manufacturing overhead, June. Finished goods inventory, June 1. Cost concepts Princeton Fabrication, Inc., produced and sold 1,200 units of the company's only product in March. You have collected the following information from the accounting records: Required Compute: Variable manufacturing cost per unit. 2. Full cost per unit. Variable cost per unit. 4. Full absorption cost per unit. 5. Prime cost per unit. 6. Conversion cost per unit. 7. Profit margin per unit. Contribution margin per unit. 9. Gross margin per unit. If the number of units decreases from 1,200 to 800, which is within the relevant range, will the fixed manufacturing cost per unit increase, decrease, or remain the same? Explain. Prepare Statements for a Manufacturing Company neer Parts, a manufacturer of windows for commercial buildings, reports the following unt information for last year (all costs are in thousands of dollars)