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.
A credit-card balance of $20,000 carried at an interest rate of 20% (compounded monthly) would result in total compound interest of $4,388 over one year or about $365 per month.