Exercise 18-6 (Part Level Submission) PCB Corporation manufactures a single product. Monthly production costs incurred in the manufacturing process are shown below for the production of 4,236 units. The utilities and maintenance costs are mixed costs. The fixed portions of these costs are $424 and $282, respectively Production in Units 4,236 Direct materials Direct labor Utilaies Property taxes Indirect labor Supervisory salaries Maintenance 10,590 25,416 2,965 1,412 6,354 2,683 1,553 3,389