I am having a problem with an excel model that I created. It has to be
circular by nature, so I have turned calculations off and have to F9 whenever
I want the model's formulas updated.

The problem that I'm having is that I have pages that sum up values from
multiple worksheets and these sum formulas are not updating when I make a
change to the pages that the summary pages reference. I do not have any
macros in the sheet. Does anyone know how to fix this?