Apply prices as discounts for showing up in invoice

Hi! thanks for your plugins that works perfectly.

I have some rules that apply a different discount based on user role (tiers). It works well but we want to show the applied discount on the invoices. unfortunetly, this only works when a coupon is applied but if we do that way, the prices shown are the ones before the discount and we need:

show the final price (applied discount) on product page, cart, etc and on the admin show it as a discount (the same way if you apply a coupon)

is that possible?

thanks in advance