The Krack vulnerability is potentially affecting every Wi-Fi device. Learn more about it and use this protection guide to secure your data. The Krack vulnerability is potentially affecting every Wi-Fi device.
In addition to the per transaction fee charged to you by the credit card processing company, you may also be assessed a minimum monthly fee. If you do not do a certain level of credit card business per month, the company will charge a minimum fee, usually around $25-$50 per month.
(MasterCard and Visa, along with the retailerâs bank, levy their own processing fees on top of the interchange fee, making the total cost of a $100 sale about $2.50 to $3.00.). Issuing credit cards has become a highly concentrated industry.