Have CoD declined or Digital Sales rose?

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DonFerrari said:

http://www.vgchartz.com/article/266627/call-of-duty-infinite-warfare-sells-an-estimated-373m-units-first-week-at-retail/

 

Our inhouse analyst just out an article about the sales of CoD IW and it onlys surpasses the FW of CoD4 and first MW, both of which was before CoD exploded in popularity and started seeing crazy FW numbers.

So did the franchise drop 75% over Black Ops 3 or did Digital Sales grow so much as to make it tops all other CoDs?

I'm guessing 80% digital attach ratio because everyone wants to play at the first second available and only digital preloading can assure you this.

Am I reading this correctly?  You believe 8 out of 10 console CoD players are buying it digitally?