Template Problem with ticket service charge

When I used the service charge on the ticket template she writes the correct amount after the service charge I dont want to see amount

What you have is actually being classified as a discount as the difference between discount and service for template is before/after tax… Its not discount = minus an amount and service = add an amount but is easy mistake to make and catches many out first time (I only found this out the other day but havnt used many calculations myself)
You probably want to create specific discount template for service charge and not show {CALCULATION AMOUNT}

[DISCOUNTS:Service Charge]

Add this as its own ’ [ S E C T I O N ] ’ to specify this format just for service charge ‘discounts’