I believe that you can better learn from a real world example, this link will help you in that and you will surely gain valuable insights: https://www.investopedia.com/articles/investing/103015/how-does-paribus-work-and-make-money.asp Besides if you do have any questions give me a call: https://c...
If your market is 'market research' then you can easily top € 1BN in EU alone. If you're creating a new market then to calculate total addressable market I'd look at similar products and multiple their price x number of prospects, or calculate the financial cost/upside for your prospects x number...