User blog comment:Sirebel/Mathematician Required - Apply Within/@comment-27170954-20170425003411/@comment-31155082-20170427093513

Good! I think the short answer is more than enough. The detailed one might have been too hard to understand ;)

The accuracy of the results surely make your approach far better than mine. And I think you can find out if the same category upgrades have all the same value after the first tests.

Then we can extend the process to all the other cars according to that.

Just to make things harder: I tried on another car and...what if also PRbase is rounded or truncated?