If you entered your data including a 2-pound weight loss into the Healthy Body Calculator®, then yes, Your Nutrition Facts would be the amount of calories to eat for a 2 pound per week weight loss at your current weight. The calculator is based on current nutrition science and practice.
The only subjective data you entered was your estimate of activity hours. So, assuming you didn’t over estimate your activity and assuming you continue the same amount of activity during your weight loss, you should lose 2 pounds per week.