Here's some base info on which to build a prediction. It's the published stats for the AC/DC concert at the Fargodome in Jan 2009:
http://www.inforum.com/event/article/id/231459/
"According to Inforum.com, AC/DC's January 17, 2009 performance in Fargo, North Dakota — which raked in more than $1.8 million — gave the Fargodome a major financial charge to start 2009.
The dome brought in about $187,282 after expenses from the 21,366 who attended the concert.
AC/DC's Fargodome show was the venue's highest-grossing concert ever in terms of ticket sales, General Manager Rob Sobolik said.
It was a huge way to start out 2009, Sobolik said. We just hope we can carry the momentum the rest of the way through 2009.
Artist/Event: AC/DC, THE ANSWER
Date: Jan. 17, 2009
Venue: Fargodome
City/State: Fargo, ND
Gross Sales: $1,870,334
Ticket Prices: $89.50, $69.50
Attendance: 21,692
Capacity: 21,692 "
Curiously they also report the Fargodome net for Jan 2009 was $152,000. Since the AC/DC concert had a net profit of $187,000 that suggests something else (vacancy?) lowered the net by $35,000