This was posted in another thread sorry can't remember who posted it...part of article.
https://theramswire.usatoday.com/2018/10/30/nfl-los-angeles-rams-dante-fowler-salaryc-ap-contract/
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According to Over The Cap, Fowler carried a cap hit of $7.3 million in 2018, but only $1.926 million of that will be paid by the Rams. He’s a free agent in 2019 so there are no future ramifications, making this a very easy financial situation to break down. Los Angeles had just about $1.8 million in cap space before the move was made, which means it had to part ways with someone before adding Fowler to the 53-man roster.
The Rams did exactly that, waiving guard Jamon Brown and saving $1.7 million. When these transactions are reflected on the salary cap, the Rams will be in the green and have about $1.7 million to spend for the rest of the season.
In simple terms, the Rams basically swapped out Brown for Fowler, losing about $200,000 in the process. A very small price to pay for a guy who will be an immediate starter at outside linebacker.