...80-90 percent of Delta 9 thc. Literally what are you confused about? The size of the cart has nothing to do with how potent the actual thc concentration is.
I buy 1g carts, which means there is .8-.9g of delta 9 thc in them. The 3g carts you showed in another comment legally cannot be more than 0.3% delta 9 thc, which means at MOST they contain .009g of delta 9 thc, 100 times less than what I can get in a single gram from a actual dispensary cart. That's about how much I can get in a couple hits, let alone the whole cart 🤣.