Required information The Immanuel Company has just obtained a request for a special order of 6,000 jigs to be shipped at the end of the month at a selling price of $7 each. The company has a production capacity of 90,000 jigs per month with total fixed production costs of $144,000. At present, the selling price is $11 each. For these regular sales, the cost for one jig is: Variable Production Cost Fixed Production Cost Variable Selling Expense $4.60 $1.80 $1.00 If the special order is accepted, Immanuel will not incur any selling expense; however, it will incur shipping costs of $0.30 per unit. Suppose that total regular sales of jigs are 80,000 units per month. If Immanuel accepts this special order, what will be the increase in the monthly operating income?