EXHIBIT 11 IPI, INC. AND SUBSIDIARIES STATEMENT REGARDING COMPUTATION OF EARNINGS PER SHARE (In Thousands, Except Per Share Amounts) Three Months Ended Nine Months Ended August 31, August 31, ------------------ ----------------- 2000 1999 2000 1999 ---- ---- ---- ---- Net Income $ 151 $ 457 $ 872 $1,376 Weighted average number of issued shares outstanding 4,859 4,734 4,843 4,734 Shares used in computation of basic earnings per common stock 4,859 4,734 4,843 4,734 ====== ====== ====== ====== Dilutive effect of outstanding stock options and stock warrants after application of treasury stock method 0 0 0 0 ------ ------ ------ ------ Common and common equivalent shares outstanding-diluted 4,859 4,734 4,843 4,734 ====== ====== ====== ====== Basic and diluted earnings per common share $ .03 $ .10 $ .18 $ .29 ====== ====== ====== ====== 12