special - time order for 15,000 bird feeders at $ 3,50 per unit Bluebird currently produces and sells . This level represents 80 % of its capachy These bird feeders would be marketed under the wholesaler's name and would not Bluebird's through normal channels Production costs for these units are $ 4 25 per unit which includes $ 250 variable cost and 175 fed cost . If Bluebird accepts this additional business , the effect on net income will be :