List Price Vs Price


I'm not sure if this is the right forum, and I tried to search to see if it was answered but no luck.

I'm just wondering why CS-Cart uses the “List Price” for cart calculations when the “List Price” happens to be less than the “Price”?

When the price is higher it uses “Price” and shows the product is on sale. Am I just confused on the role of “List Price” vs “Price”?

Is there a way to always use “Price” in cart calculations no matter what?