Try this
[LAYOUT]
– General layout
Kbouch El Toute
Date:{TICKET DATE}
Time:{TIME}
{ENTITIES}
Ticket No:{TICKET NO}
-
{ORDERS}
=
{DISCOUNTS}
[Total Gift:|{ORDER STATE TOTAL:Gift}]
{SERVICES}
Before Total:| [=TN('{TICKET TOTAL}')*2] USD
Total:|{TICKET TOTAL} USD
{PAYMENTS}
=
T H A N K Y O U
[DISCOUNTS]
{CALCULATION NAME} %{CALCULATION AMOUNT}|{CALCULATION TOTAL}
[SERVICES]
{CALCULATION NAME}|{CALCULATION TOTAL}
[PAYMENTS]
{PAYMENT NAME}|{PAYMENT AMOUNT}
[ORDERS]
– Default format for orders
- {QUANTITY} {NAME}|{TOTAL PRICE}
{ORDER TAGS}
[ORDERS:Gift]
– Format for gifted orders
- {QUANTITY} {NAME}|GIFT
{ORDER TAGS}
[ORDERS:Void]
– Nothing will print for void lines
[ORDER TAGS]
– Format for order tags
* {ORDER TAG NAME} | {ORDER TAG PRICE}
[ENTITIES:Table]
– Table entity format
Table: {ENTITY NAME}
[ENTITIES:Customer]
– Customer entity format
Customer: {ENTITY NAME} | {ENTITY DATA:Phone}
You can also find syntax for formula among other things here