The Finishing Department of Pinnacle Manufacturing Co. prepared the following factory overhead cost budget for October of the current year, during which it expected to operate at a 100% capacity of 10,000 machine hours.
During October, the plant was operated for 9,000 machine hours and the factory overhead costs incurred were as follows: indirect factory wages, $16,400; power and light, $10,000; indirect materials, $3,000; supervisory salaries, $12,000; depreciation of plant and equipment, $8,800; insurance and property taxes, $3,200.Prepare a factory overhead cost variance report for October.
(The budgeted amounts for actual amount produced should be based on 9,000 machine hours.)