Present Offer Code Price Programmatically

Hi, I have a 12 months subscription which I generated some offer codes for. I generated 25000 of them manually in App Store Connect (One-Time Use Codes).

I want to send those codes to users by push notifications and I need to show the final price when the code will be applied. The problem is that I use the native sheet, which only shows the price after the user entered the code.

Is there an API that I can hook into to retrieve that price?

Otherwise, the best I could do would be to calculate ActualPrice * Discount (because I know the discount since I created the codes), but I am afraid it will not be accurate enough, because it is not possible to select price for offer codes with that precision.