I'm sure this is a very simple answer but I've been struggling with this one for hours now.
I have a summary field which totals up an "Hours" field in a table. When I bring up the portal it correctly shows the total of each of the hours records listed in the portal. If I change an hours amount the summary field at the bottom is cleared out. The correct amount does not appear again until I change the parent record and switch back.
There has to be an easy way to display the total hours at the bottom of the portal, doesn't there?