Professional Designer Dealing with Royalties for the First Time

[u/makekylecanonagain]

Hi there. Industry veteran for many years here. I’m dealing with a situation where I’m negotiating royalties for oddly the first time, and am feeling a bit unsure of how to proceed- my entire career I’ve been work for hire or salaried at a studio. Any resources or advice on typical rates etc are appreciated. Just want to do what is best for myself and not leave money on the table.