Five years ago, the hair dryer produced by the Wilson Appliance Company accounted for 50 percent of all sales of hair dryers nationwide. Currently, however, Wilson Appliance' s product makes up only 25 percent of such sales. Because of this decline, and because the average net income that Wilson receives per hair dryer sold has not changed over the last 5 years, the company' s net income from sales of the product must be only half of what it was 5 years ago. The reasoning in the argument is flawed because the argument ["mistakes a decline in the market share of Wilson Appliance's hair dryer for a decline in the total sales of that product", 'does not provide specific information about the profits hair dryers generate for the companies that produce them', "fails to discuss sales figures for Wilson Appliance's products other than its hair dryers", "overlooks the possibility that the retail price of Wilson Appliance's hair dryer may have increased over the past 5 years"]