EXHIBIT 11 IPI, INC. AND SUBSIDIARIES STATEMENT REGARDING COMPUTATION OF EARNINGS PER SHARE (In Thousands, Except Per Share Amounts) Three Months Ended Six Months Ended May 31, May 31, ------------------- ------------------- 2000 1999 2000 1999 ---- ---- ---- ---- Net Income $ 555 $ 545 $ 721 $ 919 Weighted average number of issued shares outstanding 4,859 4,734 4,835 4,734 Shares used in computation of basic earnings per common stock 4,859 4,734 4,835 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 4,835 4,734 ====== ====== ====== ====== Basic and diluted earnings per common share $ .11 $ .12 $ .15 $ .19 ====== ====== ====== ====== 12