The Ghost of Christmas Present shows Scrooge affairs as they are in the present day and the joy of Christmas in general while Hark the Herald Angels Sing is playing in the background.
The first thing the ghost shows Scrooge is Bob Cratchit eating Christmas dinner with his impoverished family with what little money Scrooge pays him for a roast goose.
The second thing ghost shows Scrooge is Fred and his friends playing party games after their Christmas dinner, which Scrooge earlier refused an invitation to.
Finally the ghost warns Scrooge about Want and Ignorance. Specifically how dangerous poor people could be, if Scrooge doesn't change his ways. When his visit with Scrooge is over, he erodes into a pile of ash.