. Production Cost Report: Weighted Average Method. Calvin Chemical Company produces a chemical used in the production of silicon wafers. Calvin Chemical uses the weighted average method for its process costing system. The Mixing department at Calvin Chemical began the month of June with 5,000 units (gallons) in work-in-process inventory, all of which were completed and transferred out during June. An additional 15,000 units were started during the month, 11,000 of which were completed and transferred out during June. A total of 4,000 units remained in work-in-process inventory at the end of June and were at varying levels of completion, as shown in the following.

Direct materials	60 percent complete
Direct labor	40 percent complete
Overhead	40 percent complete

The cost information is as follows:

Costs in beginning work-in-process inventory

Direct materials	$8,000
Direct labor	$3,000
Overhead	$2,800

Costs incurred during the month

Direct materials	$21,000
Direct labor	$ 8,500
Overhead	$ 7,200

Required:

1. Prepare a production cost report for the Mixing department at Calvin Chemical Company for the month of June.
2. Confirm that total costs to be accounted for (from step 2) equals total costs accounted for (from step 4). Note that minor differences may occur due to rounding the cost per equivalent unit in step 3.