The accounts report in the local congregation was read for the month of October (midwest rural US).
130 pubs, about 100 attend most meetings, let's say 90 or so of those 100 attendees have a new bible.
They usually donate to the world wide word about 400-500 a month, but in October they donated 1300, so one can infer that they put in about 900 to cover the new Bible.
900/90 = $10, which is an estimate of how much each one in this congregation put in for the new NWT.
Of course there are other places and ways to make donations, but it gives an idea of the paltry amount most are putting in.