How do I update ticker?

I went into tools and found my ticker but I can't figure out how to get icon to move to show the lbs I've lost. All it asks for is start weight and goal weight.

Under the My OH, you should go to "health tracker" to input your current weight.  As you update your tracker with your new weight, your ticker, depending on which one(s) you use will indicate your pounds lost or pounds to go.  It does take a few minutes to update before you see the change.  Sometimes if you log out and log back in it will show your correct calculations.

Ah thank you very much. I got it!!