Period Product Fixed Variable Cost Items Cost Cost Cost Cost 1. Salaries of salespersons per month Rent on a headquarters building per year 2. unit. 3. Wages of machine operators per 4. Insurance on factory equipment per year 5. Depreciation of factory equipment per year 6. Direct materials used in production Sales commissions per unit sold 7. Required: For each of the above costs incurred in a manufacturing company, indicate whether the costs are (a) fixed or variable and (b) product costs or period costs by putting "X" infront the correct answer. (Note that each cost item is classified in two ways: first, as variable or fixed; and second, as a product cost or period costs)