IMAGE GUIDED TECHNOLOGIES, INC. EXHIBIT 11.1 STATEMENT RE: COMPUTATION OF PRO FORMA NET INCOME (LOSS) PER COMMON SHARE (UNAUDITED) Six Months Year Ended Ended December 31, June 30, 1995 1996 Weighted average number of common shares outstanding 1,088,387 1,363,451 Weighted average number of shares of preferred stock assumed converted to common stock at the time of issuance 266,662 266,662 Number of shares of preferred stock assumed issued under antidilution provisions 37,628 37,628 Common and common equivalent shares issued during the twelve month period to the filing of the Company's proposed initial public offering calculated using the treasury stock method and the assumed initial public offering price of $5 per share 283,260 283,260 Weighted average number of dilutive common stock equivalent shares calculated using the treasury stock method 290,587 -------------- ------------- Pro forma weighted average number of common shares outstanding 1,675,937 2,241,588 -------------- ------------- -------------- ------------- Net income (loss) ($1,051,949) $125,834 -------------- ------------- -------------- ------------- Pro forma net income (loss) per common share (Unaudited) ($.63) $0.06