Who counts and how many do we need?
Unless otherwise specified, a quorum is "a majority of the group" (more than 50 percent).
Ex officio members count toward the establishment of a quorum, unless they are ex officio of all groups or not otherwise part of the organization.
Example: A treasurer who is an ex officio member of a finance committee counts as part of a quorum. A president who is ex officio on all committees does not count in a quorum. If the synod bishop is an ex officio member of the congregation, the bishop does not count toward a quorum.
This is true both when the individual is present and when the individual is absent. The treasurer still counts toward the group total for a quorum even when absent. The president does not count toward the establishment of a quorum even when present.
Note: If there are additional questions about quorums, refer to the FAQ on the official Robert's Rules of Order site.
Details regarding a quorum can also be found in the Fourth Edition of Robert's Rule, available online (the Twelfth Edition is the current official edition).
Note: Majority votes requires more than half, whereas fractions are inclusive of the fraction. If there are 30 votes, 15 is not a majority, but 20 is two-thirds.
Example: The constitution may be amended by a majority vote. Such amendments must be ratified by a two-thirds vote.
Example: If there are 50 members, 30 are present, and 24 cast valid votes, a "majority vote" would require 13, a "majority vote of the members present" would require 16, and a "majority vote of the entire membership" would required 26.
These numbers only include those entitled to vote. Nonvoting members are not counted in any of the above numbers.
The following phrases should not be used, as they are either redundant or unclear.
Note: The Model Constitution includes the phrase "present and voting" in various places in case congregations otherwise decide to allow proxy or absentee voting.
Note: Additional details regarding voting can be found in the Fourth Edition of Robert's Rule, available online (the Twelfth Edition is the current official edition).