Product cost classifications Forham Inc. manufactures stainless steel knives. Following are factory costs incurred during the year: Material costs Stainless steel 5640,000 Equipment oil and grease 4.800 Plastic for handles 4,480 Wood blocks for knife storage 1940 Labor costs Equipment operators 5400,000 Equipment mechanics 65.000 Factory supervisors 217,600 a. What is the direct material cost for the year? b. What is the direct labor cost for the year? c. What is the total indirect material cost for the year? $ d. What is the total indirect labor cost for the year