We have 3 members of our LLC. We need to determine percentage of ownership. To this point we have worked on our product (complex website) for 15 months. Owner 1 came up with the idea and has participated in brainstorming the development. Owner 2 has participated in brainstorming the development and has taken on specific duties and responsibilities in addition to product marketing. Owner 3 has developed the product, hired contractors, made all decisions, will coordinate the developers throughout the development process and has been responsible for all funding of the LLC. How do you fairly determine percentage of ownership?