Which Ghost Affected Scrooge the Most?

In the story, A christmas Carol the main character Scrooge met three spirits, they were the Ghost of Christmas Past, the Ghost of Christmas Present and Ghost of Christmas Yet to Come. Each of the ghosts took Scrooge to different places and showed him the past, the present and the future. I think the Ghost of Christmas Yet to come affected Scrooge the most, because the ghost showed Scrooge the grave of himself. After seeing his own grave, Scrooge started to beg in the ghost to undo all the events in saw in the visions and also he promised to honor Christmas. So I think that the Ghost of Christmas Yet to Come affecter Scrooged the most.