YITH Dynamic Pricing per Payment Method Premium allows adding a discount or surcharge for each payment method.
You can see the functionality of this plugin in the section "Your Order" on "Checkout" page
Direct Bank Transfer: Adds $5 to the order total.
Check Payments: Not rules applied.
Paypal: Adds a 1% discount to the order total.
To test Backend functionality, please, click on the "LAUNCH ADMIN DEMO" button. This will create a sandbox environment for you only, where you can test the plugin features as an administrator.
You'll find all plugin settings in:
YITH Plugins -> Dynamic Pricing per Payment Method->Settings
In this section you can create different rules for each payment method.