EXHIBIT 11 ARMCO INC. COMPUTATION OF INCOME (LOSS) PER SHARE (Unaudited) (Dollars and shares in millions except per share amounts) Three Months Ended Six Months Ended PRIMARY June 30, June 30, --------------- --------------- 1994 1993 1994 1993 ------ ------ ------ ------ Net income (loss) applicable to common stock (After preferred dividends of $4.4 for the three months ended June 30, 1994 and 1993; and $8.9 for the six months ended June 30, 1994 and 1993): Income (loss) from continuing operations $65.5 $ (5.8) $ 33.8 $ (31.4) Income from discontinued operations - 10.1 - 9.2 - ------------------------------------------------------------------------------ Income (loss) before cumulative effect of accounting changes 65.5 4.3 33.8 (22.2) Cumulative effect of changes in accounting for certain postretirement and postemployment benefits and income taxes - - - (307.5) - ------------------------------------------------------------------------------ Net income (loss) $ 65.5 $ 4.3 $ 33.8 $(329.7) - ------------------------------------------------------------------------------ Weighted average number of common shares 104.5 103.9 104.3 103.7 Weighted average number of common equivalent shares 0.1 0.3 0.1 - - ------------------------------------------------------------------------------ Average common shares outstanding as adjusted 104.6 104.2 104.4 103.7 - ------------------------------------------------------------------------------ Income (loss) per share: Income (loss) from continuing operations $0.63 $(0.06) $ 0.32 $(0.30) Income from discontinued operations - 0.10 - 0.09 - ------------------------------------------------------------------------------ Income (loss) before cumulative effect of accounting changes 0.63 0.04 0.32 (0.21) Cumulative effect of changes in accounting for certain postretirement and postemployment benefits and income taxes - - - (2.97) - ------------------------------------------------------------------------------ Net income (loss) per share $ 0.63 $ 0.04 $ 0.32 $(3.18) - ------------------------------------------------------------------------------ FULLY DILUTED* Net income (loss) applicable to common stock(After preferred dividends of $8.9 for the six months ended June 30, 1993): Income (loss) from continuing operations $69.9 $ (1.4) $ 42.7 $ (31.4) Income from discontinued operations - 10.1 - 9.2 - ------------------------------------------------------------------------------ Income (loss) before cumulative effect of accounting changes 69.9 8.7 42.7 (22.2) Cumulative effect of changes in accounting for certain postretirement and postemployment benefits and income taxes - - - (307.5) - ------------------------------------------------------------------------------ Net income (loss) $ 69.9 $ 8.7 $ 42.7 $(329.7) - ------------------------------------------------------------------------------ Weighted average number of common shares 104.5 103.9 104.3 103.7 Weighted average number of common equivalent shares 0.1 0.3 0.1 ** Weighted average number of preferred shares on an "if converted" basis 22.7 22.7 22.7 ** - ------------------------------------------------------------------------------ Average common shares outstanding as adjusted 127.3 126.9 127.1 103.7 - ------------------------------------------------------------------------------ Income (loss) per share: Income (loss) from continuing operations $ 0.55 $ (0.01) $ 0.34 $ (0.30) Income from discontinued operations - 0.08 - 0.09 - ------------------------------------------------------------------------------ Income (loss) before cumulative effect of accounting changes $ 0.55 0.07 0.34 (0.21) Cumulative effect of changes in accounting for postretirement and postemployment benefits and income taxes - - - (2.97) - ------------------------------------------------------------------------------ Net income (loss) per share $ 0.55 $ 0.07 $ 0.34 $ (3.18) - ------------------------------------------------------------------------------ Shares of stock outstanding at June 30 Common 104.6 103.9 Preferred - $2.10 Class A 1.7 1.7 Preferred - $3.625 Class A 2.7 2.7 Preferred - $4.50 Class B 1.0 1.0 <FN> * Calculation of fully diluted loss per share for all periods except the three months ended June 30, 1994 is submitted in accordance with Securities Exchange Act of 1934 Release No. 9083, although it is contrary to paragraph 40 of APB Opinion No. 15 because it produces an antidilutive result, or is not required by footnote 2 to paragraph 14 of APB Opinion No. 15 because it results in dilution of less than 3%. ** Antidilutive