> > which returns > > 4561078546.84 > > If you fix it, as follows: > > year_periods=days_invested/365 > > the answer is about 85. :-) > > -- > --Guido van Rossum (home page: http://www.python.org/~guido/) >>print my_anwser-Guido's_answer >>4561078461.84 That's a big difference. Even for us ;) Art