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 22,500 Stage of completion for materials 80% Stage of completion for conversion cost 30% Costs in work in process inventory: Materials $168,920 Labor 66,970 Overhead 17,310 Total costs in beginning work in process $253,200 Units started into production in January 59,500 Units completed and transferred in January 58,500 Costs added to production: Materials Labor Overhead Total costs added into production in January Work in process ending: Units in process $270,845 287,465 60,290 $618,600 23,500 Stage of completion for materials 50% Stage of completion for conversion cost 10%