I co-founded a start-up in fashion industry, I intend to leave because of financial reason and not having a central role. My work was mostly involved in designing site & marketing.
1) How do I mention this start-up in my resume, should I mention this under professional experience or make a new category?
2) How do I explain the situation when the start-up is a year old?
P.S: I'm applying to another start-up in intellectual property right field. I have B.S with major in industrial engineering.