Variable Costing

Marsich Company has the following information for February:

Sales	$790,000
Variable cost of goods sold	355,500
Fixed manufacturing costs	134,300
Variable selling and administrative expenses	79,000
Fixed selling and administrative expenses	47,400

Determine the following for Marsich Company for the month of February:

a. Manufacturing margin	$
b. Contribution margin	$
c. Operating income	$