Assume the following information: Sales Variable expenses Contribution margin Fixed expenses Net operating income Amount $300,000 120,000 180,000 40,000 $140,000 Per Unit $40 16 $24 If the selling price per unit increases by 10% and unit sales drop by 5%, then the best of estimate of the new net operating income is: Multiple Choice $146,100. O $155,500 O $159,500. O $146,100