Assume the following Information: Sales Variable expenses Amount $300,000 120,000 Per Unit $40 16 Contribution margin 180,000 $24 Fixed expenses 51,000 Net operating income $129,000 Help Save & Exit 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 $148,500. $143,400