Contribution Margin Concepts DiPinto Electric Guitars & Basses sells musical instruments in Philadelphia. Assume the following information comes from the company's prior year records. Fixed Variable Total Sales Costs $800,000 Goods sold $346,000 Labor $180,000 40,000 Supplies 10,000 4,000 Utilities 9,000 5.000 Rent 48,000 Advertising 10,000 Miscellaneous 10,000 5,000 Total costs $267,000 $400,000 (667,000)) Net income $133,000