Their sales looks like they were very nugu.
Bad But Good
Format: 1st Single Album
Release Date: July 1st, 2010
Total Sales in South Korea (Gaon): 19,899 copies sold
14,564 copies sold in 2010
4,421 copies sold in 2011
603 copies sold in 2012
115 copies sold in 2013
196 copies sold in 2015
Step Up
Format: 2nd Single Album
Release Date: September 27th, 2010
Total Sales in South Korea (Gaon): 3,834 copies sold
3,265 copies sold in 2011
569 copies sold in 2012
A Class
Format: 1st Full Album
Release Date: July 18th, 2011
1st Month Sales (Gaon): 16,652 copies sold (#5)
Total Sales in South Korea (Gaon): 36,441 copies sold
31,885 copies sold in 2011
2,643 copies sold in 2012
1,484 copies sold in 2013
374 copies sold in 2014
55 copies sold in 2015
Touch
Format: 1st Mini Album
Release Date: February 20th, 2012
1st Month Sales (Gaon): 18,000 copies sold (#5)
Total Sales in South Korea (Gaon): 21,929 copies sold
21,613 copies sold in 2012
316 copies sold in 2013
Independent Women Part III
Format: 2nd Mini Album
Release Date: October 15th, 2012
1st Month Sales (Gaon): 13,153 copies sold (#7)
Total Sales in South Korea (Gaon): 14,272 copies sold
13,443 copies sold in 2012
829 copies sold in 2013
Hush
Format: 2nd Full Album
Release Date: November 6th, 2013
1st Month Sales (Gaon): 11,700 copies sold (#8)
Total Sales in South Korea (Gaon): 15,354 copies sold
12,216 copies sold in 2013
2,518 copies sold in 2014
620 copies sold in 2015
Colors
Format: 3rd Mini Album
Release Date: March 30th, 2015
1st Month Sales (Gaon): 5,668 copies sold (#13)
Total Sales in South Korea (Gaon): 12,261 copies sold
11,527 copies sold
734 copies sold