Gastric Bypass Cost

I’ve heard of many people eventually gaining their weight back on after a gastric bypass surgery. I am curious to know ~ from those who have had it, how long they have kept the weight off.

I had gastric bypass a little under 2 years ago and i am working out 3 times a week for an hour and half. THe first hour is weights and the half hour is doing cardio. I have plateaued in weight loss and need to know how many calories i should be eating so that i can loose more weight.