Builder Products, Incorporated, uses the weighted-average method in its process costing system. It manufactures a caulking compound that goes through three processing stages prior to completion. Information on work in the first department, Cooking, is given below for May: Production data: Pounds in process, May 1; materials 100% complete; conversion 80% complete 10,000 Pounds started into production during May 100,000 Pounds completed and transferred out ? Pounds in process, May 31; materials 60% complete; conversion 20% complete 15,000 Cost data: Work in process inventory, May 1: Materials cost $ 1,500 Conversion cost $ 7,200 Cost added during May: Materials cost $ 154,500 Conversion cost $ 90,800