Work in Process Account Data for Two Months; Cost of Production Reports Pittsburgh Aluminum Company uses process costing to record the costs of manufacturing rolled aluminum, which consists of the smelting and rolling processes. Materials are entered from smelting at the beginning of the rolling process. The Inventory of Work in Process-Rolling on September 1 and debits to the account during September were as follows: Bal., 600 units, 30% completed: Direct materials (600 x $4.10) Conversion (600 x 30% x $1.70) $2,460 306 $2,766 $58,968 From Smelting Department, 14,040 units Direct labor Factory overhead 15,868 8,544 + During September, 600 units in process on September 1 were completed, and of the 14,040 units entering the department, all were completed except 1,000 units that were 90% completed. Charges to Work in Process-Rolling for October were as follows: From Smelting Department, 16,100 units Direct labor Factory overhead $70,840 19,610 10,562 During October, the units in process at the beginning of the month were completed, and of the 16,100 units entering the department, all were completed except 800 units that were 60% completed. Required: 1. Enter the balance as of September 1 in a four-column account for Work in Process-Rolling. Record the debits and the credits in the account for September. Construct a cost of production report and present computations for determining (a) equivalent units of production for materials and conversion, (b) costs per equivalent unit, (c) cost of goods finished, differentiating between units started in the prior period and units started and finished in September, and (d) work in process inventory. If an amount box does not require an entry, leave it blank.