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. The following information is available for the Molding department for January. Work in process beginning: Units in process Stage of completion for materials 23,600 80% Stage of completion for conversion cost 30% Costs in work in process inventory: Materials $168,260 Labor 67,760 Overhead 17,320 Total costs in beginning work in process $253,340 Units started into production in January 59.500 Units completed and transferred in January 57,700 Costs added to production: Materials $267,516