EXHIBIT 11 ABATIX ENVIRONMENTAL CORP. AND SUBSIDIARY Computation Re Per Share Earnings Year Ended December 31, ---------------------------------------------- 1996 1995 1994 ------------ ------------ ------------ Average shares outstanding: Primary: Common shares outstanding, beginning of period 2,159,214 2,293,248 2,275,918 Weighted average number of shares issued 11,243 22,932 36,995 Weighted average number of shares acquired (94,216) (108,724) (1,829) Dilutive stock options and warrants, based on the treasury stock method using average market prices 34,341 30,856 18,990 ------------ ------------ ------------ Total 2,110,582 2,238,312 2,330,074 ============ ============ ============ Fully Diluted: Common shares outstanding, beginning of period 2,159,214 2,293,248 2,275,918 Weighted average number of shares issued 11,243 22,932 36,995 Weighted average number of shares acquired (94,216) (108,724) (1,829) Dilutive stock options and warrants, based on the treasury stock method using the market price at the end of the period if higher than the average market prices 34,341 30,856 18,990 ------------ ------------ ------------ Total 2,110,582 2,238,312 2,330,074 ============ ============ ============ Earnings: Earnings from continuing operations $ 734,403 $ 813,377 $ 580,209 Earnings (loss) from discontinued operations 21,545 - (363,233) ------------ ------------ ------------ Net earnings $ 755,948 $ 813,377 $ 216,976 ============ ============ ============ Primary earnings per common and common equivalent share: Earnings from continuing operations $ .35 $ .36 $ .25 Earnings (loss) from discontinued operations .01 - (.16) ------------ ------------ ------------ Net earnings $ .36 $ .36 $ .09 ============ ============ ============ Fully diluted earnings per common and common equivalent share: Earnings from continuing operations $ .35 $ .36 $ .25 Earnings (loss) from discontinued operations .01 - (.16) ------------ ------------ ------------ Net earnings $ .36 $ .36 $ .09 ============ ============ ============