<PAGE>
EXHIBIT NO. 11
ROTARY POWER INTERNATIONAL, INC. AND SUBSIDIARY
COMPUTATION OF INCOME (LOSS) PER COMMON SHARE
(UNAUDITED)
FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2000 AND 1999
<TABLE>
<CAPTION>
Nine Months Ended September 30,
2000 1999
----------------- -----------------
<S> <C> <C>
BASIC
Shares outstanding, beginning of period 6,212,855 6,112,855
Weighted average number of shares issued,
retired and issuable share equivalents 1,587,462 55,556
----------------- -----------------
Weighted average number of common and common equivalents
shares outstanding 7,800,317 6,168,411
================= =================
Net loss $ (1,487,131) $ (974,010)
================= =================
Net loss per common share $ (0.19) $ (0.16)
================= =================
DILUTED
Weighted average number of common and
common equivalent shares outstanding as adjusted
to full
dilution 8,480,609 6,968,411
================= =================
Net loss $ (1,487,131) $ (974,010)
================= =================
Net loss per common share $ (0.18)* $ (0.14)*
================= =================
</TABLE>
* These calculations are submitted in accordance with SEC requirements,
although they are not in accordance with APB Opinion No. 15 because
they are anti-dilutive.