Oh, here we go, I found this on an article at Eurogamer after some googling:
So that means for 22,500 you’re getting 4 months of UGP. At $15 a month normally, that would normally be $60 I guess, so that translates to 375ppd. Which seems really good.
Though note that the 1 month of Gold and 3 months of Gold give you a much better translation rate into UGP according to that quote from Eurogamer. Hmmm.
But 3 months of Gold are not on sale currently. They are 20,000 points. So you could get 2 months of UGP for 20,000 points, or 4 months (double) for 22,500. So the sale on Xbox Live Gold is definitely the better deal if that quote is accurate.
I think I might take the plunge and find out for myself.
EDIT: Yep. It worked. 4 months of Ultimate Game Pass is what this translates to. Not a bad deal. Though in the future if there is a good sale on 3 months of Live Gold, that could potentially translate to a better deal perhaps. One to keep an eye on anyway.