While puzzling about with calculations, I learned that you can create a calculation in a text box more or less the same way as you could in Excel. But this is limited to basic numeric calculations, ie [=5+5]. I'm still working on trying to use other cells (such as RegularRetail and PromotionalRetail) in the calculation. For some reason Access doesn't recognize the fields I enter. Does anybody know the correct format for this or what I ought to be doing? Or should I just give up and devote all my energy to puzzling through queries?