$2.$ Winnebagel Corp. currently sells $20,000$ motor homes per year at $$103,000$ each and $14,000$ luxury motor coaches per year at $$155,000$ each. The company wants to introduce a new portable camper to fill out its product line; it hopes to sell $25,000$ of these campers per year at $$19,000$ each. An independent consultant has determined that if the company introduces the new campers, it should boost the sales of its existing motor homes by $2,700$ units per year and reduce the sales of its motor coaches by $1,300$ units per year. What is the amount to use as the annual sales figure when evaluating this project? Why?