I have accepted an answer on every question that I posed, except for the question that got closed? Do closed questions count towards the accept rate?
1 Answer
The accept rate is updated every 24 hours (or so). Closed questions do not count when calculating the rate.
The mouse-over text says you've accepted 7 of 8 eligible questions. When I look at your account profile I see 11 questions, so three of them aren't eligible.
This appears to be the only question (with answers) that you haven't accepted an answer.
But, honestly, 88% is a great accept rate. Don't worry about it.
More information can be found in this FAQ on Accept Rate.