Complete this question by entering your answers in the tabs below. 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 round intermediate calculations. Round your final answer to a whole dollar amount.) Complete this question by entering your answers in the tabs below. 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 round intermediate calculations. Round your final answer to a whole dollar amount.)