13. Work-in process inventory, January 1, 2011 $43,000 Work-in process inventory, December 31, 2011 $48,500 Conversion costs during the year $415,000 If direct materials used during the year were $135,000, what was cost of goods manufactured? (1 Point) $409,500. $544,500. $500,000 $539,000. $140,500. 14. The fixed costs per unit are $10 when a company produces 10,000 units of product. What are the fixed costs per unit when 8,000 units are produced? (1 Point) O $6.50. O $5.50. O $12.50 15. The term differential cost refers to (1 Point) a difference in revenue which results from selecting one alternative instead o another the benefit forgone by selecting one alternative instead of another. a cost which does not involve any dolla outlay but which is relevant to the decision-making process. a cost which continues to be incurred even though there is no activity. a difference in cost which results from selecting one alternative instead of another. Submit