Seems like your wholly-owned subsidiary that is commercializing your patents is returning its profits to you as a royalty, and therefore its marginal profit on sales should be used as a guide to calculate the "reasonable royalty" that is your acknowledged due.
Gosh, US patent law is more messed up than I thought. Not only do The Lawyers get a huge cut of the money on any "infringement" cases, but you have to pay them along the way to make sure that you get your rightful infringement vengence.
