Probably not everything for Katy. Writing partners (Max Martin, John Myers...) and for the producers..
But any case a surprisingly large amount, expecially when the sales of catalogs have slow down and prices have come down.

Hey, how is it possible that Smile has 2.6M units from streaming and Witness 1.8M, when the only partform where Smile outdid it is Spotify (by a very thin margin not enough to justify a 800k album units gap by your method)?

Youtube didnt count on CSPC lists, right ? Cause makes no sense Witness has less streams than smile
Witness: More than 3 billion streams on youtube + 1.4 billion streams on spotify.
Smile: 700 million streams on Youtube + 1.5 billion streams on Spotify.

Prism has more than 10 billion streams on Youtube and more than 3.5 billion streams on Spotify. It has at least 4 or 5 times more streams than Smile. How can be only twice streams sales ?

Hi Matos!

YouTube views of course count on CSPC lists, they weren't retrieved for Smile though. That album wasn't out when studied. What happens here, is that as the algorithm only knows Smile's Spotify data, it uses the Spotify to EAS career average of Katy Perry to convert these streams into sales. So the YouTube views of Smile are calculated based on the average of One of The Boys, Teenage Dream, Prism, Witness and orphan songs' results, which obviously inflates its conversion as it performed much poorly there compared to its predecessors.

Quite possibly, if Katy Perry gets updated, this album would go down overall even with pure sales added, as they stand at 180k + 44k from Chinese downloads, which would be weighted at 75% on its case, plus songs' downloads but as we know these are very low these days.

It's weird this bias you have against Katy, it's been confirmed long time ago Teenage Dream surpassed 7 million physical copies, PRISM sold 4.5 million physical copies by the end of 2014 according to IFPI, Witness is Platinum certified in Mexico, that's 60k units and according to you, Smile sold 0 copies?

"Smile" sold not a zero . This data is for June 16 , 2019 . Before release of that album . Streaming is auto-updating .

Teenage dream finally getting acclaim because critical snubbed it when it was released. Now it is seen as perfect pop record. Such era can't be replicated in streaming era .