We can process a refund for your customer's Credit Card payment in the Refund receipt section, @venturatradingpe.
Here's how:
Click on the +New.
Under the Customers section, select Refund receipt.
Fill in the important details using the same information from the original sale.
Choose the payment method and the account from which you wish to refund the customer.
Then, select Save.
If you need to issue a partial refund, you may adjust the items or the amount as needed.
For more information on refunding your customer's credit card payment, please refer to this article: Void or refund customer payments.
Also, you can use various financial reports to gain a clear view of your business's financial growth. I have also included a resource where you can find the complete guidelines for customization: