A customer has asked Ironwood Corporation to supply 5,000 units of product DOS, with some modifications, for $44.00 each. The normal selling price of this product is $55.00 each. The normal unit product cost of product D05 is computed as follows: Direct materials Direct labor......... Variable manufacturing overhead...... Fixed manufacturing overhead.. Unit product cost. $12.70 6.10 8.70 7.70 $3520 Direct labor is a variable cost. The special order would have no effect on the company's total fixed manufacturing overhead costs. The customer would like some modifications made to product DOS that would increase the variable costs by $3.50 per unit and that would require a one-time investment of $20,000 in special molds that would have no salvage value. This special order would have no effect on the company's other sales. The company has ample spare capacity for producing the special order. Determine the effect on the company's total net operating income of accepting the special order. Show your work