QS 18-18 (Algo) Margin of safety in dollars and as a percent of sales LO C2 Zhao Company has fixed costs of $366,000. Its single product sells for $177 per unit, and variable costs are $117 per unit. If the company expects sales of 10,000 units, compute its margin of safety (a) in dollars and (b) as a percent of expected sales. a. Margin of safety (in dollar) b. Margin of safety (%)