DNT and CoinBase Pro

Buy in at $0.0570 with $%0. I have run many trials from 2021 - 2024. Same outcome on Coinbase Pro. They take 25% of price from buy-in spot. Thats on a trade $50-$500. More if your dare. Predatory pricing. OnRamp Only then move to DEX. Trade still a go! No advice but selling is silly!