What is the margin of safety in dollars and as a ratio? (Round ratio to 2 decimal places, eg. 12.25.) Margin of safety Margin of safety ratio 64.74 eTextbook and Media Your answer is incorrect. If the company wishes to increase its total dollar contribution margin by 30% in 2017, by how much will it need to increase its sales if selling price per unit, variable price per unit and total fixed costs remain constant? (Round answer to O decimal places, eg. 2,520,) Total increase in sales required: 16167