By putting "Hotline Bling" on the album all those streams it received are now figured into his album numbers. Factor that with the album only iTunes version... he could do 2 million.
Here's what i mean by objectively. Sales wise, i am not disputing that. Yes Adele will sell buckets because you know, 21. But when i mean a bigger reach, i look towards who impacts teenagers, college students, 20~somethings, 30+ parents etc.
He has a much greater grip on social media, the internet, culture than ADELE will ever have. There's literally no-one else that comes close. And he does it with everyone of all ethnicities, religion etc.
Drake’s inclusion of “Hotline Bling” at the end of album has some other massive implications for his album sales. Because the cumulative streams of that song will be included in calculating sales of the album on the Billboard chart