Amount of CNY required for 2 weeks stay

Hi, I am planning to stay in Guangzhou and area for 2 weeks. I have paid for accommodation already, but I would like to know how much should I count per day for transport, food (I eat 4 times a day), tourist attractions.
I was also planning to take a trip to Shanghai, Sanya and Tianmen Mountain (2 days each).
I do not plan spending a lot of money for souvenirs, maybe some tea and that's it.
Is 5000 CNY enough to cover expenses for that? Thanks in advance for your advice.