This module calculates the proportion of articles in a given WikiProject that have been assessed for quality ratings (i.e. any articles that are not tagged as "Unassessed"), and returns this as a simple number. It is used by to populate the value for a progress bar that updates automatically based on category memberships.
<nowiki>{{</nowiki>#invoke:{{BASEPAGENAME}}|''main''}}When invoked by a template that supplies a parameter called "project", it will use that parameter as a WikiProject name for class-rating categories, and return the percentage of articles in those categories that are not listed as "Unassessed". This value is a number (with one decimal place) returned as a string.