The Secretarial Election Board must count the number of valid ballots and cast spoiled ballots to determine total voter participation. The Board must take the total voter participation and divide it by the total number of Registered Voters. This total is used to determine whether the percentage of Registered Voters who cast votes meets the requirements of the tribe's governing documents or Federal statute that requires at least 30 percent voter participation. For example:
Total number of votes cast (80) divided by the total number registered voters (200) or 80 ÷ 200 = 0.40 or 40 percent voter participation.
25 C.F.R. §81.39