I presume you quoted a part of the end-to-end fees. A random link[1] suggests about 3% effective rate for USA. I think in EU fees are legislatively capped at 2% or so.
> In general, merchant processors will likely offer you an effective rate somewhere between 2.9% to 3.3%. You can try to negotiate that down, especially if you have high sales volume.
[1] https://fitsmallbusiness.com/credit-card-processing-fees-2/