i’m from Colombia and have been working in china for almost 3 years now, near Guangzhou.
The salaries varies a lot from city to city, or if is a Chinese company or a international company, if they want you to speak Chinese? and you can, and so many different variables. for an entry level position in a Chinese company you can expect 6k-10k RMB a month + accommodation ( or subside) depending on your profile. for a mid level position around Guangzhou area from 12k to 18k will be a regular offer ( if you can get close or over 20k will be a good salary for china and you will be able to save good money). shanghai and hongkong are the only really expensive cities in china. so salaries in shanghai around 20k to 25k will be good to rent apartment (around 4k-5k a month) and the rest to spend in all your want depending on your lifestyle but for sure it will get you trough comfortably. you can still live “ok” with 8k to 10k but dont accept less than that.