It would be hard to guess why the result changed.
I am new to Numbers and need help to understand the difference I found today between an equation generated in Excel and the one generated in Numbers. I was making a graph to show potentials against the log of an ion concentration. Excel gave it to me right away in the lab, but at home I got an entirely different answer in Numbers.
Any ideas? I would love to stick with one spreadsheet program, preferably mastering iWork.