Bundle Games Contribution %

Independent from CV from non-bundle games. It used to be capped, like OP said,

Bundle games give 15% of their store value. Other than that, there is no cap anymore.

<,face palms>. you are making it more complicated then it is. non-bundle games contribute 100% of the games price in US dollars to your level, bundled games contribute 15% of the games price in US dollars to your level