It’s my first time to look for a job and im a graduate of Information technology. I applied for a part-time job as a home-based web and graphic designer that only requires 12 hours per week in the office and got an offer for an interview already. Do you have any of idea of how much the salary rate is??? 
Thanks for your help
There isn’t really any “standard” salary. Really depends on how much the company values you, and how good a negotiator you are. For a fulltime position, it could be anywhere between ¥3 million and ¥8 million.