$17$It costs$$Oriole$$Company $$7$of variable costs and $$3$of fixed costs to produce its product at full capacity. However, the company currently has unused capacity. The product sells for $$15.$Pharoah$$Company offers to purchase$2640$units at $$9$each$.$Oriole$$will incur special shipping costs of $$2\mathrm{.}50$per unit. If the special offer is accepted and produced with unused capacity, net income will$$increase $$1320.$increase $$5280.$decrease $$1320.$decrease $$5280.$