THE PERKIN-ELMER CORPORATION COMPUTATION OF NET INCOME (LOSS) PER SHARE (Dollar amounts in thousands, except per share amounts) At June 30, 1997 1996 1995 1994 1993 Weighted average number of common shares 43,383 42,720 42,129 43,857 43,780 Common stock equivalents - stock options 1,296 1,027 515 816 1,173 Weighted average number of common shares used in calculating primary earnings per share 44,679 43,747 42,644 44,673 44,953 Additional dilutive stock options under paragraph #42 APB #15 116 137 120 172 97 Shares used in calculating earnings per share - fully diluted basis 44,795 43,884 42,764 44,845 45,050 Calculation of primary and fully diluted earnings per share: PRIMARY AND FULLY DILUTED: Income from continuing operations $ 115,155 $ 13,944 $ 66,877 $ 73,978 $ 24,444 Income (loss) from discontinued operations - - - (22,851) 1,714 Income before cumulative effect of accounting changes 115,155 13,944 66,877 51,127 26,158 Cumulative effect of accounting changes - - - - (83,098) Net income (loss) used in the calculation of primary and fully diluted earnings per share $ 115,155 $ 13,944 $ 66,877 $ 51,127 $ (56,940) PRIMARY: Per share amounts: Income from continuing operations $ 2.58 $ .32 $ 1.57 $ 1.66 $ .54 Income (loss) from discontinued operations - - - (.52) .04 Income before cumulative effect of accounting changes 2.58 .32 1.57 1.14 .58 Loss from cumulative effect of accounting changes - - - - (1.85) Net income (loss) $ 2.58 $ .32 $ 1.57 $ 1.14 $ (1.27) FULLY DILUTED: Per share amounts: Income from continuing operations $ 2.57 $ .32 $ 1.56 $ 1.65 $ .54 Income (loss) from discontinued operations - - - (.51) .04 Income before cumulative effect of accounting changes 2.57 .32 1.56 1.14 .58 Loss from cumulative effect of accounting changes - - - - (1.84) Net income (loss) $ 2.57 $ .32 $ 1.56 $ 1.14 $ (1.26) EXHIBIT 11