Really Basic Mathematical/ICM Questions

[KennyBanya]

Party 22 or 33. You posted the BB for 200 with 6 players left. Cutoff pushes 1100 chips. All other players have folded.

What size total stack do you call with any 2 cards and no reads? What size stack do you need to start weighing in other factors, such as your hand strength, read on your opponent, size of other stacks, etc.?

If I have 400 to start, I am getting 3.5 to 1 and clearly should call. If I have 600 I am getting 2.25 to 1 and would be tempted to fold a hand like deuce five.

I guess I am looking for a magic number where I should automatically call out of the BB, as it pertains to the size of my stack.

Thanks,

KennyBanya