Calories 4 months after RNY??? Help!

I am eating all the right foods and I am exercising but I am losing slowly. Nobody wants to talk about calories but I need to know a ballpark range to confirm I am doing things right. I had surgery in March 2005. I have lost in total 72 lbs., 46 lbs. since the surgery. I know everyone loses differently but I need to know if I am doing things right. Thanks, Lilian