Extra is an additional fee that you apply if there are certain payments that add additional fees and are charged to the customer. for example: credit card
I. Set Surcharge
Step 1. Go to setup menu and then go to payment tab, click on the payment you want to set

Step 2. Input surcharge then press save button

Step 3. Surcharge is added successfully

II. Trigger Surcharge When Do A Sales
Step 1. Create a sales transaction and click pay

Step 2. Select a Payment Method then click ok

**note : = Surcharge will be automatically inputted when you select the payment method that you have previously set
Step 3. Transaction with surcharge was successful
