I wasn't stating his numbers were correct, just that if his numbers were correct, he had a great rate.
Since he states 99.9% is CNP, I agree with you he is not @ 1.573

Link to current MasterCard Interchange :

https://www.mastercard.us/en-us/abou...terchange.html

Visa Interchange :

https://usa.visa.com/support/small-b...ions-fees.html

BTW, I am currently involved in merchant processing, but, I do not participate in the race to the bottom.
If the only item important to the merchant is the "lowest rate" I'll pass on the account.