I have taken a quick look at the data gathered by my XBLCG Report Tool and have compiled some of the more basic stats. This is based on 17 reports, 3 of which have incomplete data.

Total Downloads: 100 890
Total Purchases: 9 366

Average Downloads: 5 935
Average Purchases: 551
Average Conversion Rate: 9.28%
Average Cost: 263 MS Points

Total Gross: $25 418.10
Total Net: $17 792.64

Average Gross: $1 495.18
Average Net: $1 046.63

Microsoft
Total Net: $7 625.42
Average Net: $448.55

Thanks to all the creators who submitted reports! As I get more data I will be able to produce better views including the all important price analysis we are all wanting to see.