Can I freeze a row at the bottom of my sheet?

I want a row at the bottom of my sheet to be frozen so I can display total cost savings at the bottom and have it always be visible. As far as I can tell, the freeze panes option only freezes cells above and to the left of the current selection, allowing you to scroll down or to the right with that row/column staying in place. Is there some way to freeze cells at the bottom of the sheet that stay visible when scrolling up?