Because most of the parts for its irrigation systems are standard, Waterways handles the majority of its manufacturing as a process cost system. There are multiple process departments. Three of these departments are the Molding, Cutting, and Welding departments. All items eventually end up in the Packaging Department, which prepares items for sale in kits or individually. lanuary. Conversion Costs Materials Costs Unit costs Costs in January Equivalent units Unit costs Costs to be aceounted for Workin process. Jan, 1 Started into production Total costs Cost Reconcillation Schedule Costs accounted for Transferred out. Workin process, Jan. 31 Materials: Conversion costs. Total costs Show the equivalent units for materials and conversion costs if Waterways used FIFO instead of weighted-average