Do you think you could estimate that part of the reason? "Part of the reason" could mean 1%, or equally well 99%. EDIT: I ask because the Chicago-NY price is >

Do you think you could estimate that part of the reason? "Part of the reason" could mean 1%, or equally well 99%. EDIT: I ask because the Chicago-NY price is >100% above German international rates. >100% is a big number and German prices are high to begin with. That makes "part of" too fuzzy for my taste.