Answer: You can add other charges in the following manner:
- Go to Main Menu > Restaurant > Transaction > Sale Invoice (Touch POS)
- Select some items
- Click “Tender” button
- Click “O Other Charges” button. It will open a new window
- Put Other Charges value either in percentage or in value.
- Click “Ok” button.
- Click “Finish” key to finish the transaction.

Note: This feature is not available In Prepaid system.
For more details please visit: http://www.rancelab.com/help/fr6_tender_finishing_a_order.htm