Question 4 20 pts ABC had the following: Partial Income Statement Sales Less: Variable Costs $450,000 $343,000 $107,000 = contribution margin Less: Fixed Costs 68,000 Net Operating Income 39,000 What is ABC's contribution Margin Ratio? % (rounded two decimal places) If ABC increased its Sales $100,000, what would be the increase in net operating income? $ (rounded nearest whole dollar)