Exhibit 11.1 PRICESMART, INC. COMPUTATION OF NET INCOME OR LOSS PER COMMON SHARE (BASIC AND DILUTED) (AMOUNTS IN THOUSANDS, EXCEPT SHARE DATA) Years Ended August 31, -------------------------------------------- 2000 1999 1998 ---------- ---------- ---------- Net income (loss) used for basic and diluted computation $ (5,444) $ (3,892) $ 3,028 ----------- ---------- ---------- ----------- ---------- ---------- Weighted average number of common shares outstanding 5,386,129 5,119,911 5,912,375 Add: Assumed exercise of those options that are common stock equivalents - - 150,085 ----------- ---------- ---------- Adjusted shares outstanding used for diluted computation 5,386,129 5,119,911 6,062,460 ----------- ---------- ---------- ----------- ---------- ---------- Earnings (loss) per share: Basic $ (1.01) $ (0.76) $ 0.51 ----------- ---------- ---------- ----------- ---------- ---------- Diluted $ (1.01) $ (0.76) $ 0.50 ----------- ---------- ---------- ----------- ---------- ----------