variable overhead efficiency variance

The following information is available from the Terry Company: Actual total factory overhead cost incurred Actual fixed overhead cost incurred Budgeted fixed overhead expenses Actual direct labor hours (DLH) worked Standard DLHs for this period's production (output) Standard variable overhead rate per DLH Standard fixed overhead rate per DLH $ 37,000 $ 11,200 $ 21,000 5,300 4,800 $ 3.00 $ 2.50 What was the variable overhead efficiency variance for the period? Multiple Choice $900 favorable. $ 1,100 unfavorable. $1,500 unfavorable. $1,700 unfavorable. $2,300 unfavorable