Don't know if this is the best study, but it contains an overview of many studies that show that excel calcs tend to have huge error rates. http://panko.shidle

Don't know if this is the best study, but it contains an overview of many studies that show that excel calcs tend to have huge error rates. http://panko.shidler.hawaii.edu/SSR/Mypapers/whatknow.htm http://panko.shidler.hawaii.edu/SSR/Mypapers/whatknow.htm Of course that raises the question would any other software environment have a lower error rate?