**Quota** is the term used for the smallest number of votes that will guarantee the
election of a candidate.

In a first-past-the-post election, where there is one and only one winner, quota is
the well-known 50% + 1. Expressed mathematically, it’s (^{1}⁄_{2}*v + 1) where *v* is the
total number of votes. A candidate with that many
votes can’t be beaten by anyone else; there simply aren’t enough votes left. A candidate
could be elected with fewer votes, but (^{1}⁄_{2}*v + 1) guarantees a win.

In a region where we elect two winners, quota is (^{1}⁄_{3}*v + 1). If candidates A and
B both have just over ^{1}⁄_{3} of the votes, no other candidate can obtain more than ^{1}⁄_{3}
to beat them.

Similarly, in an election with three winners, quota is (^{1}⁄_{4}*v + 1) and for four winners
quota is (^{1}⁄_{5}*v + 1).

The general formula is $$\frac{1}{n+1} v + 1$$
where *n* is the number of people to be elected and *v* is the number of votes.

There are actually several different ways to calculate quota. This approach is known as Droop quota.