There is a calculator mentioned in the article:
https://www.kff.org/interactive/how-much-more-would-people-p...
I am trying to do the before/after for a single Adult earning $25,000 per year. It looks to be a 4% difference. I am not sure how you go from ~$500 to $2800 using this calculator. Short of starting to cover more people like children, etc.