I have no horse in this game, but 17/300 = 5.2% and 90/1300 = 6.9%. (edit: wikipedia says population of China is 1.4 billion, which would give 6.4%).
17/330 = 5.2% 60/1400 = 4.2%
the grandparent poster was mistaken (the 90 million represented the amount of people the empty housing could house, not the amount of empty homes itself) so I found real number and included the link.
I have no horse in this game, but 17/300 = 5.2% and 90/1300 = 6.9%. (edit: wikipedia says population of China is 1.4 billion, which would give 6.4%).