If you got 3k CNY for lodge, you'd have a room much better than that you can have with 1k SGD.
talk about eating. You go to a restaurant with decoration and service in the league of those in shopping malls here. You order 2 dishes it'll be something like 60/70. if you go japanese/korean/western, normally it's 80/90. you have much better meals in terms of quantity and quality and variety. say. everyday you spend 100CNY, your monthly expense on f&b is 3K.

on the other hand, if you wanna living condition the likes of those you can get by 3k CNY in Beijing, you have to pay at least 1.5k, agree?
meals? most of us eat at food court.we all know the price in shopping center restaurant ?

recreation? except for rarity like golf/surfing/tennis, things are much cheaper. gym membership,pool, in-door activities, pub performances, beers, travels, etc.