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Margin of Safety a. If Del Rosario Company, with a break-even point at $359,100 of sales, has actual sales of $630,000, what is the margin of safety expressed (1) in dollars and (2) as a percentage of sales? Round the percentage to the nearest whole number. 1. 2. 9 b. If the margin of safety for Del Rosario Company was 45%, fixed costs were $1,937,925, and variable costs were 55% of sales, what was the amount of actual sales (dollars)? (Hint: Determine the break-even in sales dollars first.)