1 point can be from 25 cal - 120 cal depending on fat and fiber. In general you can estimate 1 point at around 50 calories but remember the 22 points does not include the 200-250 calories built into the program for free veggies and freebies.
make sure your daughter is eating enough real fats (margarine, butter, oils, real salad dressings) and enough protein. These take longer to digest and help keep us satisified. Also ensure she fills up on free veggies and her water.