simply maths (which RFC has disagreed with, but not said why)
Ricoh - 23 games x 10,000 fans x £15 per ticket = £3.45 million. Take off the £1.3 million rent and that = £2.15 million
Sixfields - 23 games x 3000 fans x £15 per ticket = £1.04 million. Lets say its rent free at Sixfields = £1.04...