I get anywhere from 70-85% of what it says.

1) Person who put that info on the wiki was wrong several times (very unlikely imo)
2) Favor was stealth nerfed at some point between now and when the Casino came out
3) Some favor-buff I'm not aware of. I have 113% favor from gifting and afaik the max is 115%, not enough to explain the difference I'm seeing.
4) Other???