Exhibit 11 Viacom Inc. and Subsidiaries Computation of Net Earnings (Loss) Per Share Three months ended Sept. 30, Nine months ended Sept. 30, ---------------------------- --------------------------- 1999 1998 1999 1998 ---- ---- ---- ---- (In millions, except per share amounts) Earnings (loss): Earnings (loss) from continuing operations....... $110.9 $ 86.4 $238.6 $(133.3) Cumulative convertible preferred stock dividend requirement..................................... -- (15.0) (.4) (45.0) Premium on redemption of preferred stock......... -- -- (12.0) -- ------ ------ ------ ------- Earnings (loss) from continuing operations attributable to common stock.................... 110.9 71.4 226.2 (178.3) Earnings (loss) from discontinued operations, net of tax...................................... -- 52.0 -- (7.6) Extraordinary loss, net of tax................... (14.2) -- (37.7) -- ------ ------ ------ ------- Net earnings (loss).............................. $ 96.7 $123.4 $188.5 $(185.9) ====== ====== ====== ======= Basic computation: - ------------------ Shares: Weighted average number of common shares......... 696.7 714.7 694.5 712.8 ====== ====== ====== ======= Net earnings (loss) per common share: Earnings (loss) from continuing operations....... $ .16 $ .10 $ .33 $ (.25) Earnings (loss) from discontinued operations, net of tax ..................................... -- .07 -- (.01) Extraordinary loss, net of tax................... (.02) -- (.06) -- ------ ------ ------ ------- Net earnings (loss).............................. $ .14 $ .17 $ .27 $ (.26) ====== ====== ====== ======= Diluted computation: - -------------------- Shares: Weighted average number of common shares (basic) 696.7 714.7 694.5 712.8 Common shares potentially issuable in connection with stock options and warrants(1)........... 12.8 10.8 14.1 -- ------ ------ ------ ------- Weighted average number of common shares (diluted)............................... 709.5 725.5 708.6 712.8 ====== ====== ====== ======= Net earnings (loss) per common share: Earnings (loss) from continuing operations...... $ .16 $ .10 $ .32 $ (.25) Earnings (loss) from discontinued operations, net of tax..................................... -- .07 -- (.01) Extraordinary loss, net of tax.................. (.02) -- (.05) -- ------ ------ ------ ------- Net earnings (loss)............................. $ .14 $ .17 $ .27 $ (.26) ====== ====== ====== ======= (1) For the nine months ended September 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.