EXHIBIT 99.5 WALSH INTERNATIONAL INC. AND SUBSIDIARIES COMPUTATION OF EARNINGS (LOSS) PER SHARE FOR THE YEARS ENDED JUNE 30, 1995, 1996 AND 1997 (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS) 1995 1996 1997 ------------ ------------ ------------ PRIMARY EARNINGS (LOSS) PER SHARE Weighted average common shares outstanding.............................. 5,806,661 6,783,837 10,505,245 Assumed exercise of certain stock options and other common stock equivalents........................................................... 1,539,613 1,413,959 152,675 ------------ ------------ ------------ ------------ ------------ ------------ 7,346,274 8,197,796 10,657,920 ------------ ------------ ------------ ------------ ------------ ------------ Income (loss) from continuing operations................................ $ (2,957) $ 2,085 $ 4,790 Loss from discontinued operations, net.................................. $ (1,554) $ (1,755) $ -- ------------ ------------ ------------ ------------ ------------ ------------ Net Income (Loss)....................................................... $ (4,511) $ 330 $ 4,790 ------------ ------------ ------------ ------------ ------------ ------------ Income (loss) per share from continuing operations...................... $ (0.40) $ 0.25 $ 0.45 Loss per share from discontinued operations, net........................ $ (0.21) $ (0.21) $ -- ------------ ------------ ------------ ------------ ------------ ------------ Net income (loss) per share............................................. $ (0.61) $ 0.04 $ 0.45 ------------ ------------ ------------ ------------ ------------ ------------ FULLY DILUTED EARNINGS (LOSS) PER SHARE Weighted average common shares outstanding.............................. 5,806,661 6,783,837 10,505,245 Assumed exercise of certain stock options and other common stock equivalents........................................................... 1,539,613 1,413,959 152,281 ------------ ------------ ------------ ------------ ------------ ------------ 7,346,274 8,197,796 10,657,526 ------------ ------------ ------------ ------------ ------------ ------------ Income (loss) from continuing operations................................ $ (2,957) $ 2,085 $ 4,790 Loss from discontinued operations, net.................................. $ (1,554) $ (1,755) $ -- ------------ ------------ ------------ ------------ ------------ ------------ Net Income (Loss)....................................................... $ (4,511) $ 330 $ 4,790 ------------ ------------ ------------ ------------ ------------ ------------ Income (loss) per share from continuing operations...................... $ (0.40) $ 0.25 $ 0.45 Loss per share from discontinued operations, net........................ $ (0.21) $ (0.21) $ -- ------------ ------------ ------------ ------------ ------------ ------------ Net earnings (loss) per share........................................... $ (0.61) $ 0.04 $ 0.45 ------------ ------------ ------------ ------------ ------------ ------------