Dreary Credit Agency processes credit applications. The labor standard at Dreary is $15 per hour, 8 hours per day (per employee). During the last pay period (10 business days), Dreary's 25 credit agents worked 1,920 hours and processed 2,500 applications. The total labor cost for the agents during this period was $29,184. What was Dreary's direct labor efficiency variance for this last pay period