Patricia Willis is the advertising manager for Bargain Shoe Store. She is currently working on a major promotional campaign. Her ideas include the installation of a new lighting system and increased display space that will add $$51,000$ in fixed costs to the $$411,000$ currently spent. In addition, Patricia is proposing that a $5\%$ price decrease to $$57)$ will produce a $20\%$ increase in sales volume $(20,000$ to $24,000$