Ortman Corporation makes a product with the following standard costs: Standard Quantity or Hours Standard Price or Rate Direct materials 6.0 liters $5.00 per liter Direct labor 0.5 hours $10.00 per hour Variable overhead 0.5 hours $1.00 per hour The company reported the following results concerning this product in May: Actual output 1,000 units Raw materials used in production 5,900 liters Actual direct labor-hours 465 hours Purchases of raw materials 7,050 liters Actual price of raw materials purchased $ 6.20 per liter Actual direct labor rate $9.50 per hour Actual variable overhead rate $0.80 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 variable overhead rate variance for May is: Noreen 4e Rechecks 2017-24-03 $93 F $96 F $96 U $93 U