There is nothing unusual about the worksheet. In fact, the cell in question worked properly in the previously-saved version of the workbook. Maybe there is a corruption in the cell. I can always recreate (make a copy) the error-cell work sheet to see if the error clears. I don't understand the text in the error information provided by the application so I brought it to this forum thinking an expert would recognize the error and provide advice.

BTW I cannot provide the workbook online as it has confidential financial information.