Find and item from a generic list of items

I have a list of products and what to check if an item id match whith ID = 100 then discount 50% otherwise default one.

Decimal discount = 10;
foreach(Product item in ProductList)
{
   if(item.ID == 100)
   {             
         discount  = 50;
         break;    
   }
}

Is there any easy code to write in one line?

You can also use Find method

Product Item = ProductList.Find(m => m.ID == 100)    
if(Item !=null)
   discount = 50;