Problems in applying discounts on a quote ( via PDF )

Hello friends,

I’m trying to apply a discount to a specific article in a quote for what add the exact amount you wish to discount in the Discount field of the article, apparently off screen but when I send it to PDF me the subtotal appears as if done It can not been applied and the total with the discounts that is not added .


Maybe you can see my recent post here : Display Subtotal, discount, total