Hi, I have a fairly simple cube (in SSAS2005) containing measures for revenue and margin, dimensions for brands, Sku, time, etc. I need to calculate current Year YTD revenue as a factor of the total revenue from all periods in the previous year. E.g.

Revenue Nov 2008 YTD = 1,500,000
Revenue Nov 2007 Prior YTD = 1,250,000
Revenue All periods Prior Year (Nov 2007 > Oct 2008) = 18,500,000

Result = 8.1%

Is this possible without having to "hard code" years into the MDX?

Thanks in advance. . .