I have a tendency in every aspect of my life to set unrealistically high expectations, so I'm trying to manage that, which is why it matters somewhat to me. For me, it provides peace of mind to see numbers (totally get that not everyone feels that way).
For background, I was watching John Pilcher's "Real Weight Goals" video, and he says at the 3 month milestone (which is approaching for me), you've generally lost half the weight you're going to lose. He says "not the weight when you first met us, but the weight just before surgery." I got caught up on that phrasing and couldn't figure out if he meant literally the day of surgery or the day you start the pre-op prep, which is a pretty big difference for me. So I was hoping for a more definitive answer on how doctors calculate this type of thing.