Exhibit 11 Viacom Inc. and Subsidiaries Computation of Net Earnings (Loss) Per Share Three months Six months ended ended June 30, June 30, ----------------- ------------------- 1999 1998 1999 1998 ---- ---- ---- ---- (In millions, except per share amounts) Earnings (loss): Earnings (loss) from continuing operations ......... $ 59.3 $(267.3) $ 127.7 $(219.7) Cumulative convertible perferred stock dividend requirement ...................................... -- (15.0) (.4) (30.0) Premium on redemption of preferred stock ........... -- -- (12.0) -- ------- ------- ------- ------- Earnings (loss) from continuing operations attributable to common stock ..................... 59.3 (282.3) 115.3 (249.7) Loss from discontinued operations, net of tax ...... -- (13.4) -- (59.6) Extraordinary loss, net of tax ..................... -- -- (23.5) -- ------- ------- ------- ------- Net earnings (loss) ................................ $ 59.3 $(295.7) $ 91.8 $(309.3) ======= ======= ======= ======= Basic computation: Shares: Weighted average number of common shares ........... 690.6 713.2 693.4 711.8 Net earnings (loss) per common share: Earnings (loss) from continuing operations ......... $ .09 $ (.40) $ .17 $ (.35) Loss from discontinued operations, net of tax ...... -- (.01) -- (.08) Extraordinary loss, net of tax ..................... -- -- (.04) -- ------- ------- ------- ------- Net earnings (loss) ................................ $ .09 $ (.41) $ .13 $ (.43) ======= ======= ======= ======= Dluted computation: Shares: Weighted average number of common shares (basic) ... 690.6 713.2 693.4 711.8 Common shares potentially issuable in connection with stock options and warrants (1) 14.4 -- 14.7 -- ------- ------- ------- ------- Weighted average number of common shares (diluted) ........................................ 705.0 713.2 708.1 711.8 Net earnings (loss) per common share: Earnings (loss) from continuing operations ......... $ .08 $ (.40) $ .16 $ (.35) Loss from discontinued operations, net of tax ...... -- (.01) -- (.08) Extraordinary loss, net of tax ..................... -- -- (.03) -- ------- ------- ------- ------- Net earnings (loss) ................................ $ .08 $ (.41) $ .13 $ (.43) ======= ======= ======= ======= (1) For the three and six months ended June 30, 1998, the assumed exercise of stock options had an anti-dilutive effect on earnings per share, and therefore was excluded from the diluted earnings per share calculation.