EXHIBIT 11.1 BEST BUY CO., INC. COMPUTATION OF EARNINGS PER COMMON SHARE (unaudited) Three Months Ended Nine Months Ended ------------------------------------------------------------------------- November 27, November 28, November 27, November 28, 1993 1992 1993 1992 ------------- ------------- --------------- ------------- Earnings: Net earnings available to common shares $ 11,161,000 $ 5,220,000 $ 19,846,000 $ 9,079,000 ------------- ------------- ------------- ------------- ------------- ------------- ------------- ------------- Shares: Weighted average common shares outstanding 20,840,000 16,910,000 19,737,000 16,856,000 Adjustments: Assumed issuance of shares purchased under stock option plans 718,000 458,000 616,000 397,000 ------------- ------------- ------------- ------------- Total common equivalent shares 21,558,000 17,368,000 20,353,000 17,253,000 ------------- ------------- ------------- ------------- Earnings per common share: Earnings before cumulative effect of change in accounting principle $ .52 $ .30 $ 1.00 $ .53 Cumulative effect of change in accounting for income taxes (.02) ------------- ------------- ------------- ------------- Net earnings per share $ .52 $ .30 $ .98 $ .53 ------------- ------------- ------------- ------------- ------------- ------------- ------------- ------------- Note: The computation of earnings per common share assuming full dilution is substantially the same as set forth above. The share and per share amounts reflect the three-for-two stock split effective September 1, 1993.