Tharaldson Corporation makes a product with the following standard costs: Standard Quantity or Hours Direct materials Direct labor Variable overhead 6.0 ounces 0.3 hours 0.3 hours Standard Cost Standard Price or Rate $ 3.00 per ounce $11.00 per hour Per Unit $ 18.00 $ 3.30 $5.00 per hour $ 1.50 The company reported the following results concerning this product in June. Originally budgeted output 3,600 units Actual output Raw materials used in production 3,200 units 21,000 ounces Purchases of raw materials 22,100 ounces Actual direct labor-hours 500 hours Actual cost of raw materials purchases $ 42,300 Actual direct labor cost $ 13,600 $3,700 Actual variable overhead cost The company applies variable overhead on the basis of direct labor-hours. The direct materials purchases variance is computed whem the materials are purchased. The variable overhead rate variance for June is