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Novak Company uses a standard cost system. Indirect costs were budgeted at $176,400 plus $14 per direct labour hour. The overhead rate is based on 9,800 hours. Actual results were: Calculate the fixed overhead production volume variance. Calculate the variable overhead spending variance. Variable overhead spending variance eTextbook and Media Calculate the variable overhead efficiency variance. Variable overhead efficiency variance $ eTextbook and Media Calculate the over-or underapplied overhead