Exhibit No. 11(b) COMPUTATION FOR FULLY DILUTED EARNINGS PER SHARE FOR THE THREE MONTHS ENDED March 31, 1997 AND 1996 (AMOUNTS IN MILLIONS EXCEPT FOR PER-SHARE DATA) UNAUDITED Three Months Ended March 31 -------- 1997 1996 ---- ---- Common Stock and Common Stock Equivalents - ----------------------------------------- Average number of common shares outstanding including shares issuable under stock options 41.3 37.5 Average number of common shares issuable under the Employee Stock Ownership Plan -- 5.3 -- --- Average number of common and common equivalent shares outstanding 41.3 42.8 ==== ==== Adjustments to Earnings - ----------------------- Net Earnings $45.5 $36.3 Less: Increased contribution to the Employee Stock Ownership Plan assuming conversion of preferred shares to common -- 1.5 Net reduction in tax benefits assuming conversion of the Employee Stock Ownership Plan preferred shares to common -- 0.3 -- --- Pro forma earnings available for common shareholders $45.5 $34.5 - ---------------------------------------------------- ===== ===== Fully diluted earnings per share of common stock $1.10 $0.81 - ------------------------------------------------ ===== ===== 23