Tharaldson Corporation makes a product with the following standard costs: Direct materials Direct labor Variable overhead Standard Quantity or Hours 7.1 ounces 0.3 hours $ 4.00 per ounce Standard Cost Standard Price or Rate Per Unit $ 28.40 $ 3.30 $ 1.20 $ 11.00 per hour 0.3 hours $ 4.00 per hour The company reported the following results concerning this product in June. Originally budgeted output Actual output 2,500 units 3,000 units 21,500 ounces Raw materials used in production Purchases of raw materials Actual direct labor-hours 22,000 ounces 560 hours Actual cost of raw materials purchases $ 45,100 Actual direct labor cost $ 12,500 $ 3,250 Actual variable overhead cost The company applies variable overhead on the basis of direct labor-hours. The direct materials purchases variance is computed when the materials are purchased. The labor efficiency variance for June is: