I weighed 245 in mid June of 2010. I don't know what I weighed when I started, because I didn't own a scale. I now weigh 166. So I guess that's 79 pounds.
Tru made a very valid point, measure yourself. I didn't in the beginning, but I would get so down when I didn't lose weight it was hard to overcome. But when I started measuring myself, it was a reminder that I was getting smaller even when I wasn't losing weight.