From the official over 1 million units sold in ~11 days... 155k are digital units claims SuperData.

The numbers looks accurate because the digital ratio this gen is 10-20% of the retail sales.

http://www.mcvuk.com/news/read/bloodborne-has-sold-155k-digital-units-worldwide-superdata-claims/0148096

BONUS

You can buy these on PlayStation Gear Store

humm, We have 180,000 in Japan, if 85% of sales are retail, we have +210,000 for Japan sold+digital. 790,000 in the rest of world.

I think that you prediction +400,000 for BloodBorne in March NPD CAN be close included digital... we will see soon.

That left us with over 850k WW for the first two weeks... looking for a drop of ~70-80% for the second week I can see these numbers for retail:

Week 1: ~650k
Week 2: ~200k

I will post a better estimate today with NPD because Japan make a huge part of Week 1 and so the Week 2 can be below 200k putting Week 1 over 700k.