I saw this link on BF. Richmond is listed in terms of annual revenue at No. 376 worldwide by this site called StadiumZone.
Sports clubs with an annual revenue of at least €20 million1. Real Madrid CF - Association football - Spain - €450 million
2. FC Barcelona - Association football - Spain - €420 million
3. New York Yankees - Baseball - United States - €416 million
4. FC Bayern Munich - Association football - Germany - €323 million
5. Manchester United FC - Association football - United Kingdom - €322 million
6. Dallas Cowboys - American football - United States - €294 million
186. Collingwood FC - Australian rules football - Australia - €56 million
266. West Coast Eagles - Australian rules football - Australia - €37 million
285. Essendon FC - Australian rules football - Australia - €33 million
286. Geelong FC - Australian rules football - Australia - €33 million
307. Hawthorn FC - Australian rules football - Australia - €30 million
333. St. Kilda FC - Australian rules football - Australia - € 28 million
346. Carlton FC - Australian rules football - Australia - €26 million
348. Fremantle Dockers - Australian rules football - Australia - €26 million
367. Melbourne FC - Australian rules football - Australia - €24 million
368. Port Adelaide FC - Australian rules football - Australia - €24 million
369. Sydney Swans - Australian rules football - Australia - €24 million
370. Western Bulldogs - Australian rules football - Australia - €24 million
376. Richmond FC - Australian rules football - Australia - €23 million384. Brisbane Lions - Australian rules football - Australia - €22 million
315. South Australia cricket team - Cricket - Australia - €30 million
411. Brisbane Broncos - Rugby league - Australia - €20 million
http://stadiumzone.weebly.com/index.html