Assume Hairy-Cairy Salon, a Charlotte hair salon, provides cuts, perms, and hairstyling services. Annual fixed costs are $225,000, and variable costs are 40 percent of sales revenue. Sales revenue totaled $450,000. Determine the margin of safety in sales dollars. (Round your final answer to the nearest dollar. Do not include the $ sign in your answer.) (Hint: Begin by calculating the break-even point in dollars.)