EXHIBIT 11 AIR & WATER TECHNOLOGIES CORPORATION COMPUTATION OF PER SHARE EARNINGS (in thousands except per share amounts) Three Months Ended Nine Months Ended July 31, July 31, 1996 1995 1996 1995 ---- ---- ---- ---- Primary Earnings (Loss) Per Share: 1. Net income (loss) $ (458) $ 105 $ (4,708) $ (10,869) 2. Less preferred dividends (825) (825) (2,475) (2,475) ------- ------ ------- -------- 3. Net loss applicable to common shareholders (1,283) (720) (7,183) (13,344) ------- ------- ------- ------- 4. Weighted average shares outstanding 32,018 32,018 32,018 32,018 ------- ------- ------- ------- 5. Net loss per share $ (.04) $ (.02) $ (.22) $ (.42) ======= ====== ======= ======= Fully Diluted Earnings (Loss) Per Share: 6. Line 3. above $ (1,283) $ (720) $ (7,183) $ (13,344) 7. Add back preferred dividends 825 825 2,475 2,475 8. Add back interest, on assumed conversion of the Company's 8% Convertible Debentures 2,300 2,300 6,900 6,900 ------- ------ ------- ------- 9. Net income (loss) $ 1,842 $ 2,405 $ 2,192 $(3,969) ------- ------ ------- ------- 10. Weighted average shares outstanding (Line 4) 32,018 32,018 32,018 32,018 11. Add additional shares issuable upon assumed conversion of preferred shares 4,800 4,800 4,800 4,800 12. Add additional shares issuable upon assumed conversion of the Company's 8% Convertible Debentures 3,833 3,833 3,833 3,833 ------- ------- ------- ------- 13. Adjusted weighted average shares outstanding 40,651 40,651 40,651 40,651 ------- ------- ------- ------- 14. Net income (loss) per share (9/13)* $ .05 $ .06 $ .05 $ (.10) ====== ====== ====== ===== * Fully diluted earnings (loss) per share are not presented as the assumed conversion of the Company's 8% Convertible Debentures is anti-dilutive.