1 EXHIBIT 11 COMPUTATION OF PER SHARE EARNINGS COMPLETE BUSINESS SOLUTIONS, INC. AND SUBSIDIARIES PRO FORMA OR ACTUAL NET INCOME PER COMMON SHARE (UNAUDITED) THREE MONTHS ENDED JUNE 30, ----------------------------- 1999 1998 ---------- ---------- Weighted average number of shares of Common Stock outstanding............................................... 37,472,895 34,287,298 Common Stock equivalents calculated using the weighted average stock price per share for the periods presented... 834,342 2,077,915 ---------- ---------- Weighted average shares outstanding......................... 38,307,237 36,365,213 ========== ========== Actual or pro forma net income.............................. 7,261,000 2,863,000 ========== ========== Actual or pro forma net income per common share............. $ 0.19 $ 0.08 ========== ========== SIX MONTHS ENDED JUNE 30, ------------------------------- 1999 1998 ----------- ----------- Weighted average number of shares of Common Stock outstanding............................................... 36,917,707 33,990,746 Common Stock equivalents calculated using the weighted average stock price per share for the periods presented... 1,203,361 -- ----------- ----------- Weighted average shares outstanding......................... 38,121,068 33,990,746 =========== =========== Pro forma net income (loss)................................. $17,496,000 $(2,357,000) =========== =========== Pro forma net income (loss) per common share................ $ 0.46 $ (0.07) =========== ===========