12:29 docs.google.com Part C - CVP " The contribution-margin ratio 2 points is the difference between the selling price and the variable cost per unit. fixed cost per unit divided by variable cost per unit. variable cost per unit divided by the selling price. unit contribution margin divided by the selling price. Consider the equation X = Sales - Total Variable Cost + net profit. What is X? net income fixed costs contribution margin 2 points The margin of safety would be 2 points negative if a company('s)