Quote from wave:
All you should be concerned about is achieving your net profit stated in your plan. As long as your net positive at the eod, eom, etc, you are trading as a business.
Look up Victor Sperandeo's consistent profitability matrix.
http://books.google.com/books?id=3V...&hl=en&sa=X&oi=book_result&resnum=4&ct=result
To calculate future $$$ based on consistent probability...
http://www.verticalsolutions.com/tools/pl_forecaster_pctwins.html