Problem 18-1A Cost computation, classification, and analysis c2c3 Listed here are the total costs associated with the production of 1,000 drum sets manufactured by TrueBeat The drum sets sell for $500 each. Variable or Fixed Product or Period Costs Variable Fixed Product Period $17,000 $17,000 1. Plastic for casing-$17,000 2. Wages of assembly workers-$82,000 3. Property taxes on factory-$5,000 4. Accounting staff salaries-$35,000 5. Drum stands (1,000 stands purchased)-$26,000 6. Rent cost of equipment for sales staff-$10,000 7. Upper management salaries--$125,000 8. Annual flat fee for factory maintenance service-$10,000 9. Sales commissions--$15 per unit 10. Machinery depreciation, straight-line-$40,000 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 an example.) Check (1) Total variable production cost, $125,000 2. Compute the manufacturing cost per drum set