P20-33A Preparing a production cost report, beginning WIP, no costs at transferred in; journal entries Roan Paper Co. produces the paper used by wallpaper manufacturers. Roan's four-stage process includes mixing, cooking, rolling, and cutting. On March 1, the Mixing Department had 300 rolls of paper in process. During March, the Mixing Department completed the mixing process for those 300 rolls and also started and completed the mixing process for an additional 4,200 rolls of paper. The department started but did not finish the mixing process for an additional 500 rolls, which were 20% complete with respect to both direct materials and conversion work at the end of March. Direct materials and conversion costs are