Here we go more details;
Coming off the heels of the console price drop last week, Microsoft Xbox 360 sales have surged, with retailers reporting over 100% sales lift for all Xbox 360 models compared to the previous weekend. Additionally, retailers are reporting that between Friday, Sept. 5 and Sunday, Sept. 7, some Xbox 360 models were selling at six times the rate they were the weekend prior.
http://kotaku.com/5048170/xbox-360s-flying-off-the-shelves-after-price-cut
So over 100% sales lift for all models for the 3 day period and some models at six times the rate of the week before.







