currency allocation - page 88 - 0.66

Hi, Quick thing: cfa, last book, page 88: I see calculation for market allocation contribution (how much you differ from 50/50 benchmark) times performance of that market. ok where does 0.66% for the currency comes from? I do again +0.10% and -0.10% times the currency performance but never get 0.66%. What am I missing? thx a lot