85%. Ryng_Tolu already posted this adjusted increase for the weekly average.

But I do not remember if the 360 Slim was available in all weeks of June 2010, so there's possibly another variable in predicting the impact that the Xbox One S will have in August 2016.

Only 181k of the total of 452k for the month? That means that the regular 360 was up month over month back then which suggests good deals from retailers during June 2010 in order to clear out stock.

We've seen such deals for the Xbox One during July already, so that makes predictions for August a good bit trickier, because the surrounding circumstances for the launch of a Slim model do not align properly.

Only 181k of the total of 452k for the month? That means that the regular 360 was up month over month back then which suggests good deals from retailers during June 2010 in order to clear out stock.

We've seen such deals for the Xbox One during July already, so that makes predictions for August a good bit trickier, because the surrounding circumstances for the launch of a Slim model do not align properly.

It does. Then you have to factor that the Slim is a significant upgrade over the fat which means that those price cuts might not be as attractive as a upgraded model. Then you have the $300 slim releasing the end of the month. 

Aww. He asked me. I like answering questions I know the answers to. :(

But to give a greater context to the effects of the 360 S, here's how it did in 2009 - 2011:

Not only did it result in the 85.7% jump in the weekly average in June over May (and an 87.7% YoY jump from June 2009, but the weekly average grew even more in July, it dipped a good bit in August, got a bit of a bump in September due to Halo: Reach, then dipped again in October. Overall, sales in the June-December period were up 56% YoY from the same period in 2009. Sales in the Jan.-May period of 2011 were up 30% YoY from the same period in 2010, while sales in the June-Dec. period were about flat YoY. 2012 saw a noticeable 20% YoY drop in Q1, but the decline accelerated in Q2 & Q3 to about -40%. Overall, 2012 was down 27% from 2011. This signalled not only that the 360 S's stimulative effect had worn off, but that the 360 had passed its peak. It had already sold 38 million units by the end of 2012, so it was going to be hard to generate any future sales growth. Sales continued to drop rapidly through the first ten months of 2013, and the loss accelerated even faster once the XBO was released.

So, there was a strong initial bump from the 360 S, and a lesser but still strong residual bump that lasted until December 2011.

Should we expect something similar from the XBO S? Perhaps. I think sales will be up YoY a good bit in the Aug.-Dec. period from the same period last year, with a bump to around 300-350k for August NPD, and that we should see healthy YoY growth in 2017 as a whole before sales begin to decline in 2018. The Scorpio, and any cuts to what might be a high retail price for that model, could result in a slower post-peak decline for the XBO, but we're going to have to wait and see.