Morris company allocates manufacturing overhead based on machine hours. each chair produced should require 4 machine hours. according to the static budget, the following is expected to incur: 2,200 machine hours per month (550 chairs x 4 hours per chair) $11,440 in variable manufacturing overhead costs $9,000 in fixed manufacturing overhead costs during january, morris company actually used 2,100 machine hours to make 510 chairs. the company spent $6,800 in variable manufacturing overhead costs and $9,100 in fixed manufacturing overhead costs. what is the fixed overhead cost variance?