Standard DL hours per tub rate per DL hour $7.50 $37.50 Standard variable overhead cost per unit Actual Actual DL hours Actual variable overhead cost per machine hour Actual tubs produced $36,125 4,250 $8.50 1,500 OA. $24,375 favorable O B. $4,250 unfavorable O C. $4,250 favorable O D. $24,375 unfavorable per tub verhead cost per unit head costs Dl hour $7.50 $37.50 $36,125 4,250 1,500 able rable ble