On Aug 6, 12:26*pm, Lesley11356
wrote:
I use a very very basic formula to calculate a percentage of one column into
another. *I've not changed anything but today when opening the document, the
formula does not work. *I've tried reentering it but still does not work. *
Has anyone any ideas on what might be the cause. *

check the values in evaluate formula. It will show you where it is
facing an issue.