Vermiculite ratio?

So today is the day of my big 2 plant repot that I'm nervous about lol. I have some Fox Farms Ocean Forrest soil and I also bought some Vermiculite. I read that mixing the Vermiculite with soil is better for the plants. But I can't seem to find the ratio I should use. I read that a good ratio for perlite is 30% perline 70% soil, would that same ratio work with vermiculite?

30 x 70 vermiculite x soil sounds about right, pretty close to the mix I use.

Yeah, its about what I use. I might have a bit more, 35 / 65, and everything is good. Really good drainage and lots of root growth.