Starmax Company pays workers producing the product Lotrim an average standard wage of $9 per hour. The standard amount of time required to produce a case of Lotrim in 2 hours. In january, Starmax produced 18,000 cases of Lotrim at a total actual labor cost of $323,000. During January, Starmax actually used 34,000 labor hours. Based on this information, the labor usage variance is?