Dallas Inc. sells a product for $68. Variable costs are 60% of sales, and monthly fixed costs are $62,016. a. What is the break-even point in units? (Do not round intermediate calculations.) Break-Even Point units b. What unit sales would be required to earn a target profit of $136,81 6? (Do not round intermediate calculations.) Total Required Sales units c. Assume they achieve the level of sales required in part b, what is the margin of safety in sales dollars? (Do not round intermediate calculations.) Margin of Safety