Bulluck Corporation makes a product with the following standard costs: Standard Quantity or Standard Price or Hours Rate $ 1.00 per gram $11.00 per hour $ 2.00 per hour Direct materials 3.5 grams Direct labor 0.7 hours Variable overhead 0.7 hours The company reported the following results concerning this product in July. Actual output 3,000 units 11,370 grams Raw materials used in production Actual direct labor-hours 1,910 hours 12,100 grams $ 1.20 per gram $ 11.40 per hour 2.10 per hour Purchases of raw materials Actual price of raw materials purchased Actual direct labor rate Actual variable overhead rate The company applies variable overhead on the basis of direct labor-hours. The direct materlals purchases variance is computed when the materials are purchased. The labor efficiency variance for July is: Multiple Choice $2,090 U $2,090 F $2,166 U $2,166 F