A cement manufacturer has supplied the following data: Tons of cement produced and sold Sales revenue Variable manufacturing expense Fixed manufacturing expense Variable selling and administrative expense Fixed selling and administrative expense Net operating income 245,000 $949,000 $226,000 $295,000 $153,600 $ 87,000 $187,400 The company's contribution margin ratio is closest to: Multiple Choice 197% 45.1% 68.9% Fern ers e single product that has a selling price of $2500 per unit Fixed expenses total $33,000 per year, and the y has a target prodt of $12.000, sales in unts must be