knock, knock, knock.....hello?
We're talking about Iran. You apparently have a lot of reading to do. Read up on elections in the Soviet Union.
Iran is run by a Supreme Leader, Khamenei. Everyone is answerable to him. He is the final decision-maker on everything, including who gets to be a candidate.
Seeing as how it's a dictatorship, and Khamenei knew the results before the ballots were counted, it's best not to put too much stock in results & figures regarding the election.