There is not one pat answer to this since the amount of movement depends largely on what comes naturally for you.
If you are a person who tends to be more dry and straightforward, you are usually better off with minimal body language and movement. If you are a person who tends to be more dramatic and high energy, then moving strategically, stopping to pause in that spot, and using hand gestures while talking is very effective.
In general, casual movement of your hands and a slow leisurely walk while presenting is usually seen as very confident.
Learn more by reading Outcome Thinking: Getting Results Without The Boxing Gloves…