We spent in China less than $20/day for both of us. Hospitality exchange worked there well and we were lucky to dodge sightseeing and all tourist traps.
http://www.asianramblings.com/how-much-does-it-cost-to-travel-in-china-2013/#comment-909
We spent in China about the same like we have spent everywhere in world: US $12,5/person/day. That figure includes everything and it is a five year average. We keep the costs down by for example ...
http://www.asianramblings.com/how-much-does-it-cost-to-travel-in-china-2013/#comment-822
Great to know that travelling in China can be done on a reasonably cheap budget.
http://www.asianramblings.com/how-much-does-it-cost-to-travel-in-china-2013/#comment-182