The 7 must-know numbers of the week

The price for the least expensive of 77 ski properties in the Victorian snow fields that were sold at a no-reserve auction last week. The properties were sold by developer Morry Schwartz, and the buyers ranged from cashmere-wearing ski bunnies to rough-and-tumble snowboarders.

The amount by which the Commonwealth Bank expect the Reserve Bank of Australia to raise interest rates in November. However, ANZ and NAB expect rates to remain on hold for quite some time, whereas Westpac expects a rate cut.

The amount, approximately, that Christina Aguilera lost when she sold her Sunset Strip, Hollywood house for about $4.65 million this week. She bought the property for an even $5 million in 2003.

The fall in new home sales for the July quarter, according to HIA. New home sales are now at their lowest level since 2000.

The price hopes for the 84th-floor penthouse in Melbourne's Eureka tower, which will go on sale next month. The penthouse is nearly 300 metres above ground.

The amount on the dollar that creditors of disgraced Australian Capital Reserve property spruiking company received. Three of ACR's directors have pleaded guilty to charges of fraud ahead of their criminal trials. Two are living in multimillion-dollar houses but have claimed to have no assets.

The amount per week actor Leonardo DiCaprio will pay per week to rent a property in Vaucluse while he films the titular role in Baz Luhrmann's adaptation of The Great Gatsby in Sydney.