Here's my analysis for Christmas week:
1) As noted above, Media Create's numbers are significantly below VGC's numbers so the error values given below may not be particularly valid.
WEEK ENDED DEC 27 | Wii: 243,706 | PS3: 147,349 | ||||||
Prediction | Error | to 10M thru Jan 31 | Prediction | Error | to 5M thru Jan 31 | |||
ioi (original) | 215,000 | -28,706 | -11.8% | -133,445 | 125,000 | -22,349 | -15.2% | -245,127 |
ioi (revised) | 255,000 | +11,294 | +4.6% | -133,445 | 115,000 | -32,349 | -22.0% | -264,377 |
ZorroX (original) | 145,000 | -98,706 | -40.5% | -173,445 | 195,000 | +47,651 | +32.3% | -55,127 |
ZorroX (revised) | 175,000 | -68,706 | -28.2% | -203,445 | - | - | - | - |
NOTE: "to 10M/5M (thru Jan 31)" indicates how far sales will be from the 10M/5M target if the prediction set is 100% correct from now on.
Predictions within 15%.
Predictions worse than 30%.