Here's an example available from Indie Fund:
7. Revenue Share. As additional consideration for Indie Fund’s willingness to make the Loan to Developer, Developer agrees to pay Indie Fund 25% of all Gross Revenue (including revenue generated by exploitation of any work based upon or derived from Game) received by Developer above the Loan amount (“Revenue Share”). The Revenue Share shall apply to the first dollar received by Developer above the Loan amount and all gross revenue received by Developer until the total payment to Indie Fund (Repayment plus Revenue Share) is equal to twice the Loan, or the Term has been reached. Developer shall pay the Revenue Share to Indie Fund monthly, within fifteen (15) days after the end of the month in which Developer received the revenue subject to the Revenue Share.
As far as the terms laid out, it's pretty clear and no mention of territories/state as 25% is universal. They do have a section that states California law would preside over any litigation, perhaps this remedies what you are talking about?
I am currently in a profit share contract that is similar to this.
A license fee equal to 2.5% of the wholesale selling price of the Product, or if no wholesale price, 2.5% of the Product's gross income as received by the Licensee.
It later states that in the event of dispute...
This Agreement shall be interpreted in accordance with the laws of California, U.S.A..
Anyway, I still consider my experience with these type of contracts limited.