That was for the first week, numbers for week ending oct 15 should be posted soon.
@xaxxiron not a credible site?
They only track B&M sales, not Steam, Impulse, Amazon GMG, DD..... and many more, meaning they only register about 5% of the actual PC sales.
http://www.pcper.com/news/Editorial/PC-Gaming-Surpass-Console-Gaming-Revenue-2015