Sec. 38. (a) Not later than thirty (30) days after a vote by the commission finally determining a matter, the commission shall enter a written final order stating the following:
(1) The names of the members present and voting.
(2) Whether the vote cast by each member was negative or affirmative.
(3) The basic facts found by the members whose vote for or against the petitioner determined the matter.
(b) If a tie vote occurs, the petition is considered to be determined adversely to the petitioner, with the members casting a vote adverse to the petitioner considered to be the majority.