Earlier quoted context omitted.
The CC transaction fee is generally about half of that. A normal sized restaurant will have their own merchant accounts for CC transactions and not pay the POS provider any percentage.
According to https://www.clover.com/pricing/quick-service-restaurant Clover's fees are: Card-present transactions 2.3% + 10¢ Keyed‑in transactions 3.5% + 10¢ So if you have a merchant acct, you'd have to negotiate rates with Clover et al. directly?
If you're a smaller actor, there are POS systems that make their money on your transactions, but even among those Clover is a really bad deal. Compare to Zettle for example, that comes with a POS system, has no monthly costs and a flat 1.75% fee: https://www.zettle.com/gb/pricing