Thanks Cag / Reiner.
Looks like we did overlook that very important detail - Jianye District lol! Thanks again Reiner!
http://en.wikipedia.org/wiki/Nanjing
Population as of 2010 - 426,999
So if we use your example of 4 people per household = 106,749 households
At say 1.5 bags/household/ = 160,123
Multiplied by 52 weeks = 8,326,396 bags
Tony