Exhibit 11 AUTOINFO, INC. AND SUBSIDIARIES Calculation of Earnings Per Share Six Months Ended Three Months Ended June 30, June 30, 1997 1996 1997 1996 ---------- ----------- ---------- ----------- Primarily and fully diluted earnings: Earnings from operations applicable to common stock $1,809,679 $ (537,502) $1,561,495 $ (939,051) ---------- ----------- ---------- ----------- Shares: Weighted average number of common shares outstanding 8,007,730 7,885,487 8,018,752 7,987,088 Add shares issuable from assumed exercise of options and warrants 40,131 -- 62,444 -- ---------- ----------- ---------- ----------- Weighted average number of common shares as adjusted 8,047,861 7,885,487 8,081,196 7,987,088 ---------- ----------- ---------- ----------- Primary and fully diluted earnings per common share: $ .22 $ (.07) $ .19 $ (.12) ---------- ----------- ---------- ----------- 15