I'm not quite sure what im doing wrong here, could someone help me?

Listed here are the total costs associated with the production of 1,000 drum sets manufactured by TrueBeat. The drum sets sell for $471 each. Costs 1. Plastic for casing-$17,000 2. Wages of assembly workers $88,000 3. Property taxes on factory-$5,000 4. Accounting staff salaries-$40,000 5. Drum stands (1,000 stands purchased)-$28,000 6. Rent cost of equipment for sales staff-$36,000 7. Upper management salaries-$125,000 8. Annual flat fee for factory maintenance service-$19,000 9. Sales commissions-$27 per unit 10. Machinery depreciation, straight-line-$43,000 Required: 1. Classify each cost and its amount as (a) either variable or fixed and (b) either product or period. (The first cost is completed as ar example.) Answer is not complete. Cost by Function Cost by Behavior Variable Fixed Product Period 1. $ $ 17,000 17,000 88,000 2. 3. 5,000 4. 40,000 5. Costs Plastic for casing Wages of assembly workers Property taxes on factory Accounting staff salaries Drum stands Rent cost of equipment for sales staff Upper management salaries Annual flat fee for factory maintenance service Sales commissions Machinery depreciation, straight-line 28,000 36,000 6. 7. 125,000 8. 19,000 9. 27 10 43,000