THE PERKIN-ELMER CORPORATION COMPUTATION OF NET INCOME(LOSS) PER SHARE (Dollar amounts in thousands, except per share amounts) 1994 1993 1992 1991 1990 Weighted average number of common shares 43,857 43,780 43,526 42,091 49,705 Common stock equivalents- stock options 816 1,173 1,169 - 130 Weighted average number of common shares used in calculating primary earnings per share 44,673 44,953 44,695 42,091 49,835 Additional dilutive stock options under paragraph #42 APB #15 172 97 280 - - Shares used in calculating fully diluted earnings per share 44,845 45,050 44,975 42,091 49,835 Calculation of primary and fully diluted earnings per share: PRIMARY AND FULLY DILUTED: Income (loss) from continuing operations $ 73,978 $ 24,444 $ 24,296 $ (16,384) $ 27,697 Income (loss) from discontinued operations (22,851) 1,714 10,941 (2,020) 20,913 Income (loss) before cumulative effect of changes in accounting principles 51,127 26,158 35,237 (18,404) 48,610 Cumulative effect on prior years of changes in accounting principles - (83,098) - - - Net income (loss) used in the calculations of primary and fully diluted earnings per share $ 51,127 $ (56,940) $ 35,237 $ (18,404) $ 48,610 PRIMARY: Per share amounts: Income (loss) from continuing operations $ 1.66 $ .54 $ .54 $ (.39) $ .56 Income (loss) from discontinued operations (.52) .04 .25 (.05) .42 Income (loss) before cumulative effect of changes in accounting principles 1.14 .58 .79 (.44) .98 Loss from cumulative effect on prior years of changes in accounting principles - (1.85) - - - Net income (loss) $ 1.14 $ (1.27) $ .79 $ (.44) $ .98 FULLY DILUTED: Per share amounts: Income (loss) from continuing operations $ 1.65 $ .54 $ .54 $ (.39) $ .56 Income (loss) from discontinued operations (.51) .04 .24 (.05) .42 Income (loss) before cumulative effect of changes in accounting principles 1.14 .58 .78 (.44) .98 Loss from cumulative effect on prior years of changes in accounting principles - (1.84) - - - Net income (loss) $ 1.14 $ (1.26) $ .78 $ ( .44) $ .98 EXHIBIT 11 - 22 -