System variables that hold the parameter values passed into the RUN command.
For example, the following command would run the file 'command.rmd' and pass in the values 'value1' and 'value2'.
RUN command.rmd USING value1 value2
In the above example, while command.rmd was executing, value1 could be accessed as %1 and value2 could be accessed as %2.
The percent variables may also be created when using an EEP, as this is technically the equivalent to running the EEP. If you wish to do this then you will need to use a syntax such as the one show here.
