How much is Uniswap fee now?

Excuse me, I was wondering if you could clarify the current fee structure for transactions on Uniswap? Specifically, how much does it cost to make a trade or swap on the platform at this moment in time? I understand that fees can fluctuate, but I'm just looking for a general idea of what to expect. Is there a fixed percentage or is it based on certain factors like the size of the trade or the token being swapped? Thanks for your help!