An accountant at Density Inc., 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, 254,000 $ 1,066,800 $ 423,000 $ 282,000 $ 85,000 $ 222,000 $ 54,800 What is the company's unit contribution margin? (Round your intermediate calculations to 2 decimal places.) Multiple Choice $2.00 per unit $4.20 per unit $0.22 per unit $2.20 per unit