(a) Whenever fifteen percent (15%) of the legal voters of any county in this state shall join in a petition to the county court of the county for the change or removal of the county seat, the county court shall order an election to be held at the voting places in the county directing that the proposition of the petitioners for the change or removal shall be submitted to the qualified electors.
(b) The number of signatures required upon a petition for change of a county seat shall be computed upon the total vote cast for the Office of Governor at the preceding general election in the county affected by the petition.