Pojman defines the consequentialist principle as holding that:  “the rightness or wrongness of an act is determined by the goodness or badness of the results that flow from it”

A more complete definition is as follows:

An act is right to the extent that it brings about the overall well-being (utility, good) of all those with moral standing who are affected by the act.
 
An act is wrong to the extent that it diminishes the overall well-being (utility, good) of all those with moral standing who are affected by the act.