DE 18-16 Use Lucent Technologies' balance sheet (Exhibit 18-2, page 714) to compute the book value per share of the company's common stock at September 30, 1999 and at September 30, 1998. At September 30, 1999, Lucent had 3,072 million shares of common stock outstanding. At September 30, 1998, shares outstanding were 3,022 million. Is the trend of book value per share positive or negative?