Takes a while to update! Also there is the chance that you have private/unlisted videos so it doesn't could them :3
+1
Also, if you have deleted videos, I think those views will be deducted from the view count on your channel page (but not deducted from analytics)
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Updates fluctuate and a lot of times YOUTUBE wants to verify the views and all that jazz.. Give it a day or two it will change.
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