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 262,000 $1,179,0ee $ 431,ee6e $ 228,eee $93,eee $ 218,ee0 $ 209,eee What is the company's unit contribution margin? (Round your intermediate calculations to 2 decimal places.)