After you log your walk in the fitness tracker, you'll be able to see how many calories it burned on that page.
You can manually change your recommended calorie range (which it sounds like you did), but anytime you go back in and change something about your goals, it will default back to the range we suggest and you'll have to manually change it again. Just FYI, we don't recommend any female go below 1200 calories per day, both for weight loss and overall health.
"You may have a fresh start any moment you choose, for this thing that we call "failure" is not the falling down but the staying down." Mary Pickford
"No matter how slow you go, you are still lapping everybody on the couch."