21 The Randwick Hotel has a large conferencing facility. It receives 10% of conference revenue as a deposit in the month prior to a conference, 50% of revenue is received in the same month that a conference is held and 40% of revenue is collected in the month following a conference. Conference revenue was $70,000, $80,000 and $90,000 in October, November and December, respectively. What conference receipts would have been collected in November