1 EXHIBIT 11 ARBOR DRUGS, INC. AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE Three Months Ended October 31, (In Thousands) ------------------ 1994 1993 ------ ------ A. Net Income (a) $ 4,709 $ 4,006 ======= ======= Weighted average number of common shares outstanding (a) 16,343 16,244 Effect of the issuance of stock options and assumed exercise of stock options at prices which are lower than the average market price of the common shares during the period, using the treasury stock method 173 123 ------- ------- B. Average number of common shares and common equivalent shares for primary earnings per share 16,517 16,367 ======= ======= Weighted average number of common shares outstanding (a) 16,343 16,244 Effect of the issuance of stock options and assumed exercise of options at prices which are lower than the market price of common stock at end of the period when such price is higher than average market 207 177 ------- ------- C. Common shares, assuming full dilution 16,550 16,421 ======= ======= Primary earnings per share A (b) $ .29 $ .24 B ======= ======= Fully diluted earnings per share A (b) $ .28 $ .24 C ======= ======= (a) These amounts agree with the related amounts in the Condensed Consolidated Statements of Income. (b) The actual difference between reported earnings per share and both primary earnings per share and fully diluted earnings, per share is less than $.01, but due to rounding, is shown as presented. 13