Wis. Stat. § 181.0735

Voting power is determined by taking the total number of votes entitled to be cast for the election of directors at the time the determination of voting power is made, excluding a vote which is contingent upon the happening of a condition or event that has not occurred at the time. Where a class is entitled to vote as a class for directors, the determination of voting power of the class shall be based on the percentage of the number of directors the class is entitled to elect out of the total number of authorized directors.