Simple question.

[Colombo]

Hey, can someone help me out here?

in HOH volume 2 harrington says that to call an all in where you are dominated you only need (x-1) pot odds.

I forget if Harrington said you need 1.7-1 odds or 2.7-1 odds to call an all in where you know you are dominated (i.e. AK to AQ)

I don't have the book on me right now, so help is appreciated, thanks.