I have no idea how much other paper mario have sold in the past and recently most nintendo IPs are selling much better than on previous gen. New IPs don't always do well but Sony new IPs have been doing great mostly. So it is really hard to know.
I'll just say that I'm looking forward to GoT and paper mario did never really caught my atention even though I saw friend playing it a few times.
duduspace11 "Well, since we are estimating costs, Pokemon Red/Blue did cost Nintendo about $50m to make back in 1996"
Mr Puggsly: "Hehe, I said good profit. You said big profit. Frankly, not losing money is what I meant by good. Don't get hung up on semantics"
Azzanation: "PS5 wouldn't sold out at launch without scalpers."