The Election Calculator created by TruthIsAll, is a small, yet powerful Excel model. The workbook contains worksheets for analyzing all presidential elections since 1988.

http://www.geocities.com/electionmodel/ElectionCalculator.htm 

The model uses historic recorded vote data in conjunction with user input assumptions. Select the "2004" tab at the bottom of the screen to calculate the Kerry/Bush vote. Enter your assumptions for uncounted vote rates, mortality rates and Kerry/Bush share of returning 2000 voters. The uncounted vote rate is the percentage difference between total votes cast and the recorded vote.

In 2004, the default uncounted vote rate is set to 2.74% based on the 2004 Census; the default is set to 3% for all other elections. Other inputs include the Democratic share of uncounted votes, voter mortality rate, preliminary and Exit Poll vote shares. All default assumptions can be overridden. The calculated national vote share is displayed immediately after each data entry.

Since users enter their own input assumptions, they are contrained only by the Calculalor's logic - which is nothing more than simple arithmetic. It’s just an unbiased number cruncher which automatically calculates vote shares over a range of scenarios ("sensitivity analysis").

Some argue that the pre-election and early exit polls are not convincing evidence of fraud. But they should consider this fact: the Final National Exit Poll is always matched to an incorrect vote count. That's because millions of votes are cast but never counted in every election; approximately 70-80% are Democratic. Those who believe Bush won by 3 million votes are challenged to come up with a plausible Bush win scenario by entering their own data assumptions. The Calculator requires real numbers, not talking points.