The reason the -2 is being appending to the permalink is because that page already exists somewhere. Check your trash can.
Sometimes people will start a page '/fyi/stay-informed/rss/' and then delete it. Then they want it back. Instead of retrieving it from the trash (because chances are they forgot they created it), they create a new page. Since the page in the trash reserves the permalink (in the event it is ever recovered), you'll get a -2 or -3 or however many pages already exist :)
Go into the trash and "permanently delete" it from there. Or recover it and use it instead. Whenever you get -2, check somewhere for a page that already has that permalink. And remember too that titles and permalinks can be different. So check all your pages if your trash is empty for a page with that permalink.