Take a look at the Max() and Last() functions in FileMaker Help. Either might do what you need here. A summary field can also return a maximum value instead of a total, count, average....
Thank you, I have discovered that because I have this field in a title header which only shows the first record in the found set. I wanted the meeting number from the last record to show. and when I resort so the last meeting is the first record then the "Old" "New' business is out of order. Maybe I should create a new field