How much variable overhead cost is incurred to manufacture one unit of each of the company's five products? (Do not round Intermediate calculations. Round your answers to 2 decimal places.) Debbie Teish Sarah Mike Sewing Kit Variable overhead cost per unit Assuming that direct labor-hours is the company's constraining resource, what is the highest total contribution margin that the company can earn if it makes optimal use of its constrained resource? (Do not found intermediate calculations. Round your final answer to a whole dollar amount.) Hichest total contribution margin