Exhibit (11) OWENS CORNING AND SUBSIDIARIES COMPUTATION OF PER SHARE EARNINGS FOR THE YEARS ENDED DECEMBER 31, 1996, 1995 AND 1994 Primary: 1996 1995 1994 (In millions of dollars, except share data) Net income (loss) $ (284) $ 231 $ 159 Weighted average number of shares outstanding (thousands) 51,722 49,152 43,647 Weighted average common equivalent shares (thousands): Deferred awards - 16 21 Stock options using weighted average market price - 543 541 Primary weighted average number of common shares outstanding and common equivalent shares (thousands) 51,722 49,711 44,209 Primary per share amount $ (5.50) $ 4.64 $ 3.61 Fully Diluted: Net income (loss) $ (284) $ 238 $ 168 Weighted average number of shares outstanding (thousands) 51,722 49,152 43,647 Weighted average common equivalent shares (thousands): Deferred awards - 16 21 Stock options using the higher of average market price or market price at end of period - 566 559 Shares from assumed conversion of debt - 1,562 5,798 Shares from assumed conversion of preferred securities - 2,810 - Fully diluted weighted average number of common shares outstanding and common equivalent shares (thousands) 51,722 54,106 50,025 Fully diluted per share amount $ (5.50) $ 4.40 $ 3.35