Sheridan Bucket CO4 a manufacturer of rain barrels, had the following data for 2019. (a) What is the contribution margin ratio? Contribution margin ratio Break-even point eTextbook and Media (c) Your answer is correct. What is the margin of safety in dollars and as a ratio? Margin of safety Margin of safety ratio If the company wishes to increase its total dollar contribution margin by 30% in 2020 , 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? Total increase in sales required