Hi,
It depends of what you need to display, only the percentage of the discount, or the discounted price, or discounted + normal price ...
All of these values are in the variable: "$this->row->discount".
You can use this code just after the product name part of the view "listing_img_title".
if(isset($this->row->discount) && !empty($this->row->discount)){
var_dump($this->row->discount);
}
With the var_dump, you wsill see all the elements inside the variable, then you just have to display the desired one.