How do I add Other charges and discount in sale transaction?

For add Other Charges/Discount in sale transaction: Go to Menu Transaction>sale
Fill the required information related to sale transaction. and click on “Add Item” button to add the item in table.
To add Other Charges/Discount, click on button “Other Charges/Discount” which is applicable on item.
Other Charges/Discount: Select the Other Charges/Discount from list. to create new Other Charges/Discount, type “new” and hit enter the create new Other Charges/Discount frame will open.
Amount for Charges/Discount: It shows amount of charges/discount. Field is visible for only discount.
Value (%): It shows discounted value on item. This field is only applicable for discount.
Amount: Amount field shows charged/discounted amount on item.