@Angelicalex1,
With about 11575466 (69, if you sum up the individual kills) monsters killed, if each player only killed 3, that would mean there are 3,858,489 people battling. I don't think there are even that many players playing Neo, let alone the plot.
Also, you need to round to nearest multiple of 5.
I guessed that there are about 50,000 people playing the plot, which comes up to 231.5 kills average, rounded down to 230. Its really just a guessing game, but you can at least make it a good guess.