The popularity rating of has_permalink explained

Github Repository Rubygem
The highest rated repository is rails/rails with 27628 watchers and 11097 forks, resulting in a Github score of 100.00 The highest rated Rubygem is rake with 80681154 total downloads
These are the references for the score, marking the popularity of 100%
Now, the repository for has_permalink over at olkarls/has_permalink has got 46 watchers and 13 forks, resulting in a Github score of 0.13 Now, the gem has_permalink has got 50823 total downloads
Therefore, the relative popularity percentage can be calculated for has_permalink
0.13 watchers & forks * 100% = 0.13%
100.00 top score
50823 total downloads * 100% = 0.06%
80681154 top score
The average of those two values results in the score:


So, assuming everyone is using the most popular projects,
roughly one out of 100 Rubyists use has_permalink

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