Hi Quill,I think KG has another spread sheet that we haven't seen yet that is doing the main calculations. These spreadsheets are just the results spread sheets. My understanding is that yahoo has a closing price that is adjusted for dividends and stock splits, that KG is using for his data. Yes excel will round the numbers, you can adjust that easy enough. No I was only concerned with how he was getting the total percent. About a year or so ago one of the writers on Moneycentral did the same thing. So it is easy to do.