Login to your Admin Panel and Navigate to Excellence->Payment Fee->Configuration.
Click on Add Fee button to add a new fees block.
Label This is for your internal purpose only.
Payment Methods Choose Payment Methods for which this fee should apply.
Fee Label Specify the fee Label to show during checkout process.
Fee Type You can set either a percent or a fixed price for extra fees.
Fee Specify the Fee amount.
Priority Order Specify order position for each fee option.
Note You Can display as many fee blocks you need. Let's see an example with percent and fixed prices.