Sheridan Incasements manufactures protective cases for MP3 players. During November, the company's workers clocked 720 more direct labor hours than the flexible budget amount of 25,260 hours to complete 103,700 cases for the Christmas season. All workers were paid $8.50 per hour, which was $0.55 less than the standard wage rate. Calculate Sheridan's direct labor efficiency variance. Direct labor efficiency variance $