People here telling you, that you can sell JUST your idea are dumb fucks who don't understand investors(angel investors)....i learned that the hard way.... Investors need "Proof of Work" which means something that will show them you are the real deal and not just every little shit who says they have an idea. A business idea is either a "Service" or a "Product" so you have to create a prototype of that idea. Creating a prototype will not easy so you need a team with different talents like if its tech an engineer, developer/coder and business sector person who will write your business plan and do your financial requirements & projection to start the business on excel.
So, when you and your team are done you can send your "Business Plan" + "Prototype"(in video if its hardware(Brick and Mortar Model) or if software based a link or apk) to investors like #AAA (info@addisababaangels.com)....then they will give you seed funding to finalize your "Product" or "Service" by selling your 100% equity in the company to them. Since its a seed funding they might ask up to 30% for software based or more for Hardware(Brick and Mortar Model) based business. Then with the seed funding you will have your final business product/service done and for deployment/starting if u need more cash....u will need to go to another investor or the themselves again and sell more of ur shares for a series A investment. Don't forget u need to always have very specific plans when pitching to investors for cash and u will need to show them in what time frame u will be able to return there investment on u. Investors are more concerned with the team than the idea so learn about concepts like Team, Problem & Vision, Value Proposition, Product, Market, Business Model, Scale, Exit
This are stuff Business plan might contain, if it gets confusing, use templates online:
1. Executive Summary
2. Company Description
3. Industry Analysis
4. Product or Service Description
5. Market Analysis
6. Economics of the business/break-even point
7. Marketing Plan
8. Operations Plan
9. Risk Management
10. Company Structure
11. Roadmap Schedule
12. Financial Projection
Dec 08, 2020