It's different for every person, depending on how much of a calorie deficit eliminating alcohol makes, how much and what foods and drinks you have instead, since a lot of people experience increased thirst and hunger after they stop drinking... many people gain... how much you exercise... you can actually gain weight from gaining muscle just because you got up and started using your body again... and you can have insulin resistance from years of drinking, so many people do not lose any weight for quite some time after they stop drinking, even though they are eating healthy at a calorie deficit and exercising.