Process Costing Problem. Kristina Company, which manufactures quality paint sold at premium prices, uses a single production department. Production begins with the blending of various chemicals, which are added at the beginning of the process, and ends with the canning of the paint. Canning occurs when the mixture reaches the 90% stage of completion. The gallon cans are then transferred to the shipping department for crafting and shipment. Labor and overhead are added continuously throughout the process. Factory overhead is applied basis of direct labor hours at the rate of $3.00 per hour. on the The following data relate to actual production during the month of May: Costs for May Work-in-process inventory, May 1 (4,000 gallons 25% complete) Direct materials-chemicals Direct labor ($10 per hour) Factory overhead $45,600 6,250 1,875 May costs added Direct materials-chemicals Direct materials-cans 228,400 7,000 35,000 10,500 Direct labor ($10 per hour) Factory overhead Units for May 4,000 Work-in-process inventory, May 1 (25% complete) Sent to shipping department Started in May Work-in-process inventory, May 31 (80% complete) 20,000 21,000 5,000 Calculate the cost per unit for each cost element (materials, overhead, labor) for May using the weighted average approach