It would be great if we could display in users cart the total profit they made from the products in their cart.
For example, a user has two products in their cart. The price of one of them has been reduced from $45 to $35 on sale. So the user will get $10 from the purchase and it will be great to display it to users.
This is possible with echo function (PHP). You have to calculate the discount sum, and then you can display it via dynamic data (echo) on the cart and checkout page.
If you’re using Gutenberg, then the savings are displayed on the checkout page (Cart page maybe, too).