Builder products, inc., 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 90% complete 85,000 pounds started into production during may 500,000 pounds completed and transferred out ? pounds in process, may 31: materials 80% complete; conversion 20% complete 45,000 cost data: work in process inventory, may 1: materials cost $ 135,700 conversion cost $ 22,000 cost added during may: materials cost $ 705,260 conversion cost $ 120,740 the company uses the weighted-average method.