Little Mix US album sales:
DNA - 140,000 (2013 figure)
Salute - 110,000
Get Weird - 55,000
total: 305,000 (2.3m+ WW sales)
5H US album sales:
Reflection - 155,000
7/27 - 88,000
total: 243,000 (600k+ WW sales)
Considering that it's 5H's home country, they receive huge promo there and have had two hits there vs. LM's zero, why are Little Mix better at selling albums in the US than 5H?
*note: Get Weird was released just a few months before 7/27, and 7/27 was preceded by Work from Home (while LM didn't have a US hit or the promo that 5H did), and they're still only ~30,000 apart in sales.