It costs Bramble Company $26 per unit ($18 variable and $8 fixed) to produce its product, which normally sells for $38 per unit. A foreign wholesaler offers to purchase 4600 units at $21 each. Bramble would incur special shipping costs of $2 per unit if the order were accepted. Bramble has sufficient unused capacity to produce the 4600 units. If the special order is accepted, what will be the effect on net income? O $82800 increase O $4600 decrease O $13800 increase O $4600 increase