Show correct upcoming invoice amounts (promotions)

Currently when a promotion is applied to a product that is recurring, the Client only sees the FULL amount without the promotion being applied (until the actual invoice is generated). I understand that the promotion gets applied at the time the actual invoice is generated, BUT this displays incorrect info to the client when they go into their portal. This causes clients to panic, complain, and possibly leave our service due to the fact they 'think' we are going to overcharge them on the next upcoming invoice. Planning expenditures for a business owner is important, and when our portal tells the client they will be charged 'more' than what the invoice will really be, it causes stress to the customer, and then they have to submit a ticket which wastes our time and theirs.

Example:

I sell a hosting plan that is regularly $100/mo, but I applied a 50% discount promotion that is recurring to that order which makes the cost actually $50. Now when the client goes into the portal, it says the 'next' invoice they should expect a $100 charge, which is not accurate, as they are only going to be charged $50. They will not know this until the invoice is actually generated. It is very misleading, and is not providing accurate details to the customers when in their portal.

Here is an actual example below of a hosting plan that is $440 a year, however this invoice has an attached promotion of 50% off. So the actual charge is $220/year. As anyone knows in the hosting industry, clients will not tell you if they are looking to move to a cheaper service, they will just do it. This could be avoided if the "actual" invoice price would show.