(Related to Checkpoint 5.2) (Future value) You have just introduced "must have" headphones for the iPod. Sales of the new product are expected to be 20,000 units this year and are expected to increase by 21 percent per year in the future. What are expected sales during each of the next three years? Graph this sales trend and explain why the number of additional units sold increases every year. a. If the 20,000 units of sales this year were expected to increase by 21 percent per year, what are the expected sales of the new headphone next year? units (Round to the nearest whole number.)