NEED HELP ABOUT FREELANCE RATE!

Hello everyone, I have some questions about freelance work. I am a recent graduate and I’m starting a freelance Graphic Design & Multimedia Design job. I have no idea about how the paying method works, the rates or anything. I would like to know how much should be my starting salary…like all the important information…If you’re a New Yorker and also a Graphic Artist…Please help me to figure about this problem. I would really appreciate it.

Thanks!