(Exhibit 11) COST PLUS, INC. COMPUTATION OF NET INCOME (LOSS) PER SHARE (IN THOUSANDS EXCEPT PER SHARE AMOUNTS, UNAUDITED) THREE MONTHS ENDED SIX MONTHS ENDED --------------------- ------------------------------ AUGUST 2, AUGUST 3, AUGUST 2, AUGUST 3, 1997 1996 1997 1996 --------- ---------- ----------- ----------- NET INCOME (LOSS) $ 187 $ (197) $ 294 $ (592) ========= ========== ========== =========== Weighted average shares outstanding during the period: Common stock 8,153 8,067 8,129 7,354 Add incremental shares from assumed exercise of stock options 410 444 360 379 --------- ---------- ---------- ----------- Weighted average common and common equivalent shares outstanding 8,563 8,511 8,489 7,733 ========= ========== ========== =========== PRIMARY NET INCOME (LOSS) PER SHARE $ .02 $ (.02) $ .03 $ (.08) ========= ========== ========== =========== Weighted average shares outstanding during the period: Common Stock 8,153 8,067 8,129 7,354 Add incremental shares from assumed exercise of stock options 436 444 452 424 --------- ---------- ---------- ----------- Weighted average common and common equivalent shares outstanding 8,589 8,511 8,581 7,778 ========= ========== ========== =========== FULLY DILUTED NET INCOME (LOSS) PER SHARE $ .02 $ (.02) $ .03 $ (.08) ========= ========== ========== ===========