You could always ask the braintrust at NRL headquarters, I think they have the final say, they either approve or decline to register the players contract pending if they believe the number is within the range value they determine to be a fair market value, hence it was the NRL who appraised Dalys market value @ 450, meaning they would accept and register a contract for him around that number, of course you can pay more, but I doubt you can’t pay less.
Confusing? Not at all, one could be forgiven for thinking it’s just another mechanism that allows the NRL to favour who it will at its absolute discretion, nothing hard to understand there.