You are provided with the following amounts for a company. You are also told that the company has no fixed manufacturing overhead.

Fixed administrative expense	$65,000
Contribution margin	$180,000
Gross margin	$273,000
Variable selling expense	$16,000
Sales	$740,000
Variable administrative expense	?
Cost of goods sold	?

a) How much is variable administrative expense?

b) How much is net operating income (loss)?