Assume the following (1) sales-$200,000, (2) unit sales- 10,000, (3) the contribution margin ratio 25%, and (4) net operating income $10,000 Given these four assumptions, which of the following is true? ) Multiple Choice The total fixed expenses $150,000 The break even point is 8,000 units The variable expense ratio is 300% The total contribution margin $40,000 D