P21-2A Premium Paper produces the paper used by wallpaper manufacturers (Imperial, Norwall. Premium Paper's four-stage process includes mixing, cooking, rolling, and cutting. In the Mixing Department, wood pulp and chemicals are blended. The resulting mix is heated in the Cooking Department in much the same way food is prepared. Then the cooked mix is rolled to produce sheets. The final process, cutting, divides the sheets into large rolled units. The Mixing Department incurred the following costs during August: Aug. 1 balance Direct materials Direct labor WORK IN PROCESS INVENTORY-MIXING Manufacturing overhead 25,872 0 6,250 17,246 During August, the Mixing Department started and completed mixing for 2.500 rolls of paper. The department started but did not finish the mixing for an additional 700 rolls, which were 20% complete with respect to both direct materials and conversion work at the end of August. Required 1. Draw a time line for the Mixing Department, similar to Exhibit 21-6. 2. Use the time line to help you compute the number of equivalent units and the cost per equivalent unit in the Mixing Department for August. 4. Journalize all transactions affecting the company's mixing process during August, includ- ing those already posted.