EXHIBIT 11.1 BEST BUY CO., INC. COMPUTATION OF NET EARNINGS PER COMMON SHARE (Amounts in 000, except per share amounts) (Unaudited) Three Months Ended Six Months Ended ------------------ ---------------- August 30, August 31, August 30, August 31, 1997 1996 1997 1996 ---- ---- ---- ---- Earnings: Net earnings available to Common shares $6,648 $3,788 $4,009 $4,197 ------ ------ ------ ----- ------ ------ ------ ----- Shares: Weighted average common shares outstanding 43,808 43,179 43,684 43,074 Adjustments: Assumed issuance of shares purchased under stock option plans 550 635 460 634 ------ ------ ------ ----- Total common equivalent shares 44,358 43,814 44,144 43,708 ------ ------ ------ ----- ------ ------ ------ ----- Net earnings per common share $ .15 $ .09 $ .09 $ .10 ------ ------ ------ ----- ------ ------ ------ ----- Note: The computation of earnings per common share assuming full dilution results in anti-dilution.