I have answered a question when my reputation was 339. The answer got 3 downvotes. That makes my reputation 332 which should have been 333. Then I have deleted my post. After that the reputation again becomes 338
So in this case the reputation is having one point less than the normal (i.e. 339). Also I have checked in my account about downvotes, but I didn't get any clarification about this one point/reputation.
Any explanation on this situation ? Is it a bug or expected behaviour ?