For its top managers, Jackson Company formats its income statement as follows: $ JACKSON COMPANY Income Statement For the Month Ended April 30, 2018 Sales Revenue 300,000 Variable Costs 135.000 Contribution Margin 165,000 Fixed Costs 130,000 Operating Income 35,000 $ 35 Jackson's relevant range is between sales of $200,000 and $450,000. Requirements 1. Calculate the contribution margin ratio. Download file O 55% O 65% 45% O 50%