Richter Company has a single product called a Wim. The company normally produces and sells 87,000 Wims each year at a selling price of $40 per unit. The companys unit costs at this level of activity are given below:

Direct materials	$	8.50
Direct labor		12.00
Variable manufacturing overhead		3.80
Fixed manufacturing overhead		6.00
Variable selling expenses		4.70
Fixed selling expenses		4.50
Total cost per unit	$	39.50

A number of questions relating to the production and sale of Wims are given below. Each question is independent.

Required:
1.	Assume that Richter Company has sufficient capacity to produce 113,100 Wims each year without any increase in fixed manufacturing overhead costs. The company could increase sales by 30% above the present 87,000 units each year if it were willing to increase the fixed selling expenses by $130,000.

a.	Calculate the incremental net operating income. (Negative amount should be indicated by a minus sign.)

Incremental net operating income

$