Visa fee for individual travellers-tourists-

I have been to China once in 2006. in that time a broker helped me with the visa process so i had no difficulties to get it. now i'm gonna make it again but with direct invitation from a chinese counterpart. The problem is that i could not figure out how much is the current visa fee? theres no such details and travel agencies rather seem to overcharging because rates vary from one to another.
Please let me know from where i can get authenticate amount visa fee for short-stay as well required supporting documents.

Thanks