Exhibit 99.a.1 Summary of Revisions to Computation of Earnings per Share Year Ended Years Ended December 31, August 31, ----------- ----------------------------------------------------------- 2000 1999 1998 1997(a) 1996(a) - -------------------------------------------------------------------------------------------------- As reported: Basic $3.71 $2.19 $2.44 $2.13 $1.93 Diluted $2.96 $2.06 $2.23 $2.13 $1.93 Revised to conform with Topic D-95: (Unaudited) Basic $2.46 $1.73 $1.92 $2.13 $1.93 Diluted $2.46 $1.73 $1.92 $2.13 $1.93 Revised to conform with Topic D-95 and reflect impact of May 2001 stock split: (Unaudited) Basic $1.23 $0.86 $0.96 $1.07 $0.97 Diluted $1.23 $0.86 $0.96 $1.07 $0.97 - -------------------------------------------------------------------------------------------------- (a) The effect of dilutive options in fiscal 1997 and 1996 were insignificant and Topic D-95 is not applicable as there was no participating preferred stock outstanding during these years. Four Months Ended December 31, (Unaudited) 1999 1998 - ------------------------------------------------- As reported: Basic $0.76 $0.71 Diluted $0.70 $0.67 Revised to conform with Topic D-95: (Unaudited) Basic $0.53 $0.52 Diluted $0.53 $0.52 Revised to conform with Topic D-95 and reflect impact of May 2001 stock split: (Unaudited) Basic $0.27 $0.26 Diluted $0.27 $0.26 - ------------------------------------------------- Exhibit 99.a.1 Continued First Quarter Second Quarter Third Quarter Fourth Quarter ---------------- ------------------------------ -------------------------------- ----------------- 2000 Calendar Quarters Three Months Three Months Six Months Three Months Nine Months Three Months (Unaudited) Ended Ended Ended Ended (b) Ended Ended - ---------------------------------------------------------------------------------------------------------------------------------- As reported: Basic $1.84 $0.61 $2.45 $0.03 $2.48 $1.23 Diluted $1.28 $0.55 $1.83 $0.03 $2.04 $0.92 Revised to conform with Topic D-95: Basic $1.07 $0.46 $1.53 $0.03 $1.70 $0.77 Diluted $1.07 $0.46 $1.53 $0.03 $1.70 $0.77 Revised to conform with Topic D-95 and reflect impact of May 2001 stock split: Basic $0.53 $0.23 $0.76 $0.01 $0.85 $0.38 Diluted $0.53 $0.23 $0.76 $0.01 $0.85 $0.38 - ---------------------------------------------------------------------------------------------------------------------------------- First Quarter Second Quarter Third Quarter Fourth Quarter ---------------- ----------------------------- -------------------------------- ----------------- 1999 Calendar Quarters Three Months Three Months Six Months Three Months Nine Months Three Months (Unaudited) Ended Ended (b) Ended Ended (b) Ended Ended - --------------------------------------------------------------------------------------------------------------------------------- As reported: Basic $1.62 $0.01 $1.62 ($0.24) $1.40 $0.85 Diluted $1.17 $0.01 $1.35 ($0.24) $1.39 $0.70 Revised to conform with Topic D-95: Basic $0.98 $0.01 $1.13 ($0.24) $1.17 $0.58 Diluted $0.98 $0.01 $1.13 ($0.24) $1.16 $0.58 Revised to conform with Topic D-95 and reflect impact of May 2001 stock split: Basic $0.49 $ - $0.57 ($0.12) $0.58 $0.29 Diluted $0.49 $ - $0.57 ($0.12) $0.58 $0.29 - --------------------------------------------------------------------------------------------------------------------------------- (b) The convertible preferred shares were excluded from the computation of EPS due to being antidilutive.