Preble Company manufactures one product. Its variable manufacturing overhead is applied to production based on direct labor-hours and its standard cost card per unit is as follows: Direct material: 5 pounds at $9.00 per pound 45.00 Direct labor: 3 hours at $14 per hour Variable overhead: 3 hours at $9 per hour27-00 Total standard variable cost per unit 42.00 $114.00