Duck Company has provided the following data concerning one of the products in its standard cost system. Variable manufacturing overhead is applied to products on the basis of direct labor-hours. Inputs Direct materials Direct labor Variable manufacturing overhead Standard Quantity or Hours per Unit of Output 5.0 grams 0.30 hours 0.30 hours Standard Price or Rate $ 7.00 per gram $21.30 per hour $ 9.60 per hour The company has reported the following actual results for the product for June: Actual output Raw materials purchased Actual price of raw materials Raw materials used in production Actual direct labor-hours Actual direct labor rate Actual variable overhead rate 8,500 units 48, 100 grams $ 7.70 per gram 42,490 grams 2,300 hours $ 21.70 per hour $ 9.80 per hour The labor rate variance for the month is closest to