Sheffield Incasements manufactures protective cases for MP3 players. During November, the company's workers clocked 760 more direct labor hours than the flexible budget amount of 25,190 hours to complete 106,500 cases for the Christmas season. All workers were paid $9.10 per hour, which was $0.41 more than the standard wage rate.

Calculate Sheffield's direct labor efficiency variance.(If variance is zero, select "Not Applicable" and enter 0 for the amounts.)

Direct labor efficiency variance