EXHIBIT 11.1 CALCULATION OF BASIC AND DILUTED EARNINGS PER SHARE BASIC EARNINGS PER SHARE Three Months Nine Months Ended June 30 Ended June 30 -------------------- ----------------- 1998 1997 1998 1997 ---- ---- ---- ---- Net income $ 8,367 $ 2,930 $18,637 $ 7,750 Weighted average number of shares outstanding 18,189 10,687 15,544 9,627 Net income per common share - basic $ .46 $ .27 $ 1.20 $ .81 ======== ====== ======== ======= DILUTED EARNINGS PER SHARE Net income $ 8,367 $ 2,930 $18,637 $ 7,750 Weighted average number of shares 18,189 10,687 15,544 9,627 Dilutive effect of outstanding options and warrants (as determined by the application of the treasury stock method) 605 3,220 543 3,083 -------- ------ ------- ------- 18,794 13,907 16,087 12,710 Net income per common share - diluted $ .45 $ .21 $ 1.16 $ .61 ========= ======= ======= =======