Shown here is an income statement in the traditional format for a firm with a sales volume of 10,000 units. Cost formulas also are shown:

Revenues	$ 50,000
Cost of goods sold ($9,000 + $2.60/unit)	35,000
Gross profit	$ 15,000
Operating expenses:
Selling ($2,300 + $0.15/unit)	3,800
Administrative ($4,700 + $0.25/unit)	7,200
Operating income	$ 4,000

Required:

1. Prepare an income statement in the contribution margin format.