Vicki sells authentic Amish quilts on her website. Suppose Vicki expects to sell 1,000 quilts during the coming year. Her average sales price per quilt is $250, and her average cost per quilt is $150. Her fixed expenses total $50,000. Compute her margin of safety a. in units (quilts). b. in sales dollars. c. as a percentage of expected sales. a. Compute her margin of safety in units (quilts). Begin by determining the formula, then compute the margin of safety in units (quilts). = Margin of safety in units = b. Compute margin of safety in sales dollars. Begin by determining the formula, then compute Vicki's margin of safety in sales dollars. Margin of safety in dollars c. Compute her margin of safety as a percentage of expected sales. (Round the percentage to the nearest hundredth percent, X.XX%.) Begin by determining the formula, then compute Vicki's margin of safety as a percentage of sales. Margin of safety as a percentage of sales =