Ortman Corporation makes a product with the following standard costs: Standard Quantity or Hours 7.9 liters Direct materials Standard Price or Rate $8.00 per liter $17.00 per hour $1.00 per hour Direct labor 0.7 hours Variable overhead 0.7 hours The company reported the following results concerning this product in May. Actual output Raw materials used in production Actual direct labor-hours Purchases of raw materials 1,600 units 12,490 liters 1,090 hours 14,000 liters $8.10 per liter $16.10 per hour $0.90 per hour iters Actual price of raw materials purchased Actual direct labor rate Actual variable overhead rate arheadrata 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 efficiency variance for May is: O $30 U $27 U O $27 F O $30 F The following standards for variable manufacturing overhead have been established for a company that makes only one product: Standard hours per unit of output Standard variable overhead rate 5.6 hours $12.00 per hour L The following data pertain to operations for the last month: Actual hours Actual total variable manufacturing overhead cost Actual output 2,600 hours $31,330 400 units What is the variable overhead rate variance for the month? 0 $4,450 U $130 u O $112 F O $4,338 U