Sales tax on recreational?

I'm visiting CO in 2 weeks and I was just wondering what the taxes on recreational are like.

I saw a post on r/trees a couple days ago, where they had to pay ~$21 in tax for about $45 worth of candies and flower. I realize that the OP of that post is from WA, so it's different there, but I would just like to get a ballpark estimate for how much it would cost me to buy an eighth (assuming it costs ~$40). Thanks!