Voting basis refers to what number or percentage of votes are required for a proposal to be adopted, or for a candidate to be elected. Two elements make up a voting basis: the proportion that must agree (majority, two-thirds, three-quarters, etc.) and the set of members to which the proportion applies (e.g. the members present and voting; the members present; the entire membership of the organization; the entire electorate etc.)
Voting bases include simple "majority" or "first past the post" (the largest number of votes, even if less than fifty percent), absolute majority (over fifty percent), and supermajority (the proportion required is greater than fifty percent, e.g. two-thirds).
- Robert, Henry M. (2000). Robert's Rules of Order Newly Revised, 10th ed., p. 389