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, ------------------ ----------------- 1996 1995 1996 1995 ---- ---- ---- ---- Primary and fully diluted earnings per share Weighted average number of issued shares outstanding 4,734 4,734 4,734 4,667 Effect of: 1994 Long-Term Incentive Plan -- -- -- -- 1994 Non-Employee Directors' Stock Option Plan -- -- -- -- ------ ------ ------ ------ Shares outstanding used to compute primary and fully diluted earnings per share 4,734 4,734 4,734 4,667 ====== ====== ====== ====== Net Income $ 419 $ 373 $1,141 $1,036 ====== ====== ====== ====== Primary and fully diluted earnings per share $ 0.09 $ 0.08 $ 0.24 $ 0.22 ====== ====== ====== ======