Just how much money did Conor McGregor rake in when he fought Floyd Mayweather?
While his biggest payout in the UFC is believed to be around £10 million, the Irishman is reported to have cashed a cheque worth $100 million.
And during his 'Evening with Conor McGregor', the 29-year-old has suggested he did pocket nearly a $100 million (£78 million).
(Watch McGregor tease a Khabib Nurmagomedov fight in Russia:)
"It's around that, we're still in the counting game," McGregor responded when asked if he earned £78 million via Daily Star.
"Some people are saying it's this, other people are saying it's that."
Robert Byrd halts the bout in the 10th round. Image: PA
As well as the fight purse, McGregor also banked further cash through the gate receipt, sponsorship and even merchandise.
Though the real money-maker is the pay-per-view business. The PPV sales in America has reportedly exceeded a mammoth 4 million buys - $100 a pop, while breaking the PPV record in the U.K.
"You know, you get your show money and then you go and gather all your information. The gate, the pay-per-view, the sponsorship revenue, the merchandise sales."
McGregor speaks with Byrd following the stoppage. Image: PA
The UFC lightweight champion dipped into the world of promoting with 'McGregor Sports & Entertainment' which was plastered across billboards, adverts and the ring.
McGregor added: "It's my first time as a promoter of an event, so it's my first time kind of diving into all of these things. Right now we're in the counting game."
Will his next fight inside the famed Octagon be a co-promotion?
Well, time will tell as he continues to be linked with a trilogy fight with Nate Diaz. And following UFC 216, Tony Ferguson, who captured the interim-UFC lightweight title, now appears to be in line to welcome him back to the cage.
Diaz or Ferguson - who do you want to see McGregor fight next?