[dleviwing]

Originally Posted by dipayankar

That is interesting. But to what percentage would energy leave the black hole?

Unknown! IMO black holes manufacture the subatomic particles that eventually form the stars and galaxies.

Originally Posted by dipayankar

Also are all mass converted to energy when they enter the event horizon??

Einstein’s equation is referring to radiant energy conversion to mass and visa-versa. In that regard the conversion would be the other way around; energy would convert to mass.