Discounts showing on customer receipt with a (-) before the total or having the total in parenthesis (5.99)

I have attached a photo of a customer receipt for reference.  As you can see under the order summary the Item Name reflects 30% discount but when you look over to the right under Amount it shows 79.16 the same way it shows the 2 items that the customer is being charged for.  Now of course when you look at the total you can clearly see a discount was taken.  Imagine for a second that this was a receipt for a table of 4 and you receive the bill.  When giving it a quick glance to make sure the bill is correct you give the amount section a quick look and see a charge for an amount you dont recognize.  You call over the server who now has to take the time to go over the bill with you and explain that those are not charges they are discounts and then prove to the guest by looking at the subtotal and what he/she was actually charged.  And there goes productivity.  Adding a (-) before the discount total or placing the discount total in parenthesis would be ideal to fix this issue.