Sheridan Bucket Co., a manufacturer of rain barrels, had the following data for 2019. Sales Sales price Variable costs Fixed costs 2.200 units $75 per unit $45 per unit $18.480 (a) What is the contribution margin ratio? Contribution margin ratio (b) What is the break-even point in dollars? Break-even point $ (c) What is the margin of safety in dollars and as a ratio? Margin of safety $ Margin of safety ratio (d) 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 it selling price per unit, variable price per unit and total fixed costs remain constant? Total increase in sales required