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Assume the following (1) variable expenses = $287,000, (2) unit sales = 10,000, (3) the contribution margin ratio = 20%, and (4) net operating income = $10,000. Given these four assumptions, which of the following is true? Multiple Choice The total sales = $358,750 The total contribution margin - $229,600 The total fixed expenses - $57,400 The variable expense ratio is 400%