A single CoolSculpting treatment will normally cause destruction of about 20-25% of the existing fat cells in the treated area. So, two treatment sessions will cause more fat destruction than one session, but the exact percentage can vary.
Patients get about a 20% reduction in the area that has been treated. If you've had more than one treatment you should have a greater reduction to the area. At our Certified Coolsculpting Center we always advise patients to maintain their weight to ensure we see the best results possible. Best of luck!