Sherman Lawn Service budgeted production volume for the month was 500 lawns. The standard overhead cost included \($20.00\) variable cost per lawn and fixed overhead costs of $5,000. Sherman actually mowed 550 lawns in October. Actual variable overhead was \($12,400\), and fixed overhead was $5,600.

Requirement 

1.Compute the total overhead variance, the overhead flexible budget variance, and the production volume variance.