1 EXHIBIT 11 COMPUTATION OF PER SHARE EARNINGS COMPLETE BUSINESS SOLUTIONS, INC. AND SUBSIDIARIES PRO FORMA OR ACTUAL NET INCOME PER COMMON SHARE (IN THOUSANDS, EXCEPT PER SHARE DATA) (UNAUDITED) THREE MONTHS ENDED MARCH 31, ------------------ 2001 2000 ------ ------ Weighted average number of shares of Common stock outstanding.................................................. 29,233 37,781 Common Stock equivalents calculated using the weighted average stock price per share for the periods presented...... -- 1,282 ------ ------ Weighted average shares outstanding............................ 29,233 39,063 ====== ====== Net income (loss).............................................. (3,003) 5,011 ====== ====== Net income (loss) per common share............................. (0.11) 0.13 ====== ======