The Malaysian tycoon injected funds into the London club and they have since signed players and turned around their league campaign following an opening day defeat to Bolton Wanderers.
"If Tony hadn't had arrived I would have left after that 4-0 defeat to Bolton," Warnock told the Daily Star.
"I am being honest here. I didn't want to leave after what I had achieved but things needed changing. I was ready to go.
"Tony arrived and it's a whole new game. I signed players who were once totally out of our wage limit. I also signed players who still had something to prove, the type of people who I have always gone for."
"For once I could shop in Harrods and not Woolworths. For once I could be on a level playing field with the others," added Warnock.
"Now I will be very disappointed if I do go. I still have ambitions but I also know if we finish bottom I will be sacked."
Warnock's side host Aston Villa later this afternoon.