4. Broadway Company procedures and sells two models of calculators. The following monthly data are provided:

	Standard	Premium
Unit selling price	$100	$150
Unit variable manufacturing cost	$60	$90
Unit variable selling and administrative cost	$15	$30
Number of units produced and sold	3,000	1,000

Total monthly fixed costs are expected to be $15,000. What is the break-even point in sales dollars at the expected sales mix? (Do not round your intermediate calculations.)