Q:

Total upvote and downvote counts are incorrect

Possible Duplicate:
You can deduce how many flags a post has 

There are a few questions on here that appear to be duplicates but either claim to be completed or related to answers being voted upon while the page is being viewed:

Voting on a question after having clicked the upvotes/downvotes count will display an incorrect value
Number of downvotes and upvotes count differs from summarized count

Here is the example question I was about to delete when I was curious the amount of up vs. downvotes it had received:

And after expanding the vote totals:

Now I'm not a doctor, but 5 - 13 != -4!

A:

That answer has 5 upvotes, 9 downvotes, and 4 people flagged it offensive, which show up as downvotes in the total vote breakdown (see the fourth bullet here). The vote summary total is cached and (apparently) flags don't force an update; the breakdown is not cached and always shows the most recent data

