Data Analysis for a cube or ODS

Hi Gurus,

Listed below are a group of factors for data analysis in a cube.....how would i find these for a cube in the design stage??? The values given here are from an existing technical documentation for an already esisting cube

Record Reduction Provided by Fiscal Period Rollup: 30%

Rows per Day Prior to Allocation: 30,500

Rows per Day Following Allocation: 492,600

Characters per Row: 500

Days Contained in Cube: 30 to 60

Minimum Volume Estimate (30 Days, 3 Series): 15,325,000 Rows

12 GB

Maximum Volume Estimate (60 Days, 3 Series): 22,500,000 Rows

Thank You

Southie