Corporation manufactures shirts, and it is considering whether or not it should accept a special order for 5,000 shirts. The normal selling price of a shirt is $45 and its unit product cost is $36 as shown below: Most of the manufacturing overhead is fixed: however, 30% of it is variable with respect to the number of shirts produced. The special order will require customizing the shirts for the customer with an additional direct materials cost of $5 per shirt and an additional direct labor cost of $4 per shirt. If it accepts this order, the firm will have to rent special equipment to handle the shirt customization at a cost of $22,000. The order would have no effect on the corporation's regular sales and it could be fulfilled using the company's existing capacity without affecting any other order. What is the minimum (i.e., the break-even) sales price per unit that the firm should charge for this special order