Illustration ii: The selling price of a product is GH10. The marginal cost per unit is GH6 and the total fixed cost is GH6,400. You are to calculate: Contribution/unit; (0) (i) Break even point in value; (ii) (iv) Break even point in units. C/S ratio. (v) (vi) (vii) The quantity of goods to be sold in order to make a profit of GH1,600. The value of sales that will result in a profit of GH1,600. Margin of safety