Adding Payment Costs
Many Payment Gateways will charge you transaction fees if a customer uses their Payment Gateway during checkout. These transaction fees (Payment Costs) can be configured for each payment method.
You can set the Order Total ($amount) needed before the Payment Cost will be added to the order, Fixed Percentage Cost (based on Order Amount) and a Fixed Fee.
The Payment Cost needs to be associated with a Geo Zone. Only ONE payment method cost can be applied per Geo Zone. This allows you to set the different rates, for example, one that applies for customers in Australia and one that applies to customers from New Zealand.