EXHIBIT (11) - STATEMENT RE: COMPUTATION OF NET INCOME PER COMMON SHARE COMPUTATION OF NET INCOME PER COMMON SHARE COMERICA INCORPORATED AND SUBSIDIARIES (IN MILLIONS, EXCEPT PER SHARE DATA) THREE MONTHS ENDED SIX MONTHS ENDED JUNE 30, JUNE 30, ------------------- ------------------- 2002 2001 2002 2001 -------- -------- -------- --------- BASIC: Average shares outstanding 176 178 176 178 ======== ======== ======== ======== Net income $184 $208 $398 $302 Less preferred stock dividends - 3 - 8 -------- -------- -------- -------- Net income applicable to common stock $184 $205 $398 $294 ======== ======== ======== ======== Basic net income per common share $1.05 $1.15 $2.26 $1.65 DILUTED: Average shares outstanding 176 178 176 178 Nonvested stock - - - - Common stock equivalent: Net effect of the assumed exercise of stock options 2 2 2 2 -------- -------- -------- -------- Diluted average shares 178 180 178 180 ======== ======== ======== ======== Net income $184 $208 $398 $302 Less preferred stock dividends - 3 - 8 -------- -------- -------- -------- Net income applicable to common stock $184 $205 $398 $294 ======== ======== ======== ======== Diluted net income per common share $1.03 $1.13 $2.23 $1.63