B C D E F G H J K L M N 0 P Oddo Corporation makes a product with the following standard costs: Standard Quantity Standard Price or Standard Cost Per Direct materials Direct labor Variable overhead or Hours Rate Unit 3.0 ounces $7.00 per ounce $21.00 0.7 hours $20.00 per hour $14.00 0.7 hours $5.00 per hour $3.50 The company reported the following results concerning this product in December. Originally budgeted output 4,400 units Actual output 4,200 units Raw materials used in production 12,820 ounces Actual direct labor-hours Purchases of raw materials Actual price of raw materials Actual direct labor rate Actual variable overhead rate 3,160 hours 14,500 ounces $6.80 per ounce $18.30 per hour $5.10 per hour 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 December is