The PSVR's price was announced on the 15th... 

Also, you need to remember this increase already started on the week ending march 12th for the PS4. While The Division did launch, how did sales increase 71%, when XB1 sales only increased 74% with marketing and a bundle? Once again, the numbers don't add up. And the PS4 bundle has been in the same place since the beginning of the year, so why would sales suddenly increase by large amounts? Yes, amazon is good at predicting a winner in the NPD, but it has been way off before in terms of a gap. So using amazon as your only source really a good way to determine sales.

Either way, I'm hoping for the NPD to give us something at least, or perhaps a leak. Something is better than nothing

Because as has been shown through the gen thusfar (Fallout, Witcher, etc) the marketing bundles aren't actually doing enough for XB1.  Games continue to sell better on PS4, even in US, regardless of the bundling and marketing.

Why would sales increase by such a large margin because of a product that's launching months away from now? I'm sure existing PS4 owners are excited for this, but we already knew it was launching this year. 

Look, no one can say for certain what'll happen unless we get NPD numbers, but so far neither mine or your argument mean nothing. It could be both ways, and I can accept that. But I seem to think that its either vgchartz increasing sales because it undertracked before, or that is just overtracking. Those are the only two ways I believe in such high numbers

PSVR could have some effect, but its hard to believe its doing 2:1 against the XB1 in NA with nothing else to show for the month.

The Division did nothing in terms of bumping up the Xbox One.

The bundle never entered the Top 100, and the game was outsold by the Ps4 version all the time.

All the Xbox One bundles of this year have failed to move needles, the best selling bundle for the Xbox One is still the Gears Remastered one.

I believe it is currently out of stock.

The Ps4 is ranked at 9, behind the likes of Dark Souls 3 (Ps4 version) and the PSN cards, which is a great position to be.

Like i said, there is nothing written in stone, Sony will not disclose numbers this NPD so all it remains is believing in VG or not.

Fallout 4 was competing with COD and BO3 in terms of bundle's, and the witcher had no bundle's and virtually no marketing in NA. I'm also talking about hardware sales, not software.

You are seriously underestimating the release of the Playstation Exclusive MLB: The Show 16.

The game is ranked at 5.

It is selling better than any game on the list.

Games can sell alot on software, but not move hardware. Why would you say a sports game would increase PS4 hardware sales?

Virtually no marketing?  You and I clearly watch different programming then.  Witcher commercials were prevalent on television for me.

You can't take software sales out of hardware sales the way you seem to want to.  People buy the hardware to play the software.  This gen thusfar people have shown that they are willing to buy the PS4 and then the software not bundled in order to buy new games like The Division, and Fallout 4.  It has also shown that people are willing to see an XB1 commercial for a game like The Witcher and go out and find it on PS4 instead.