Weston Products manufactures an industrial cleaning compound that goes through three processing departmentsGrinding, Mixing, and Cooking. All raw materials are introduced at the start of work in the Grinding Department. The Work in Process T-account for the Grinding Department for May is given below:

The May 1 work in process inventory consisted of 132,000 pounds with $137,280 in materials cost and $36,960 in conversion cost. The May 1 work in process inventory was 100% complete with respect to materials and 80% complete with respect to conversion. During May, 322,000 pounds were started into production. The May 31 inventory consisted of 128,000 pounds that were 100% complete with respect to materials and 60% complete with respect to conversion. The company uses the weighted-average method to account for units and costs.

Work in Process-Grinding Department Completed and transferred to Inventory, May 1 Materials Conversion 174,240 407,520 124,160 the Mixing Department Inventory, May 31