Simple initial calculation: do your sums add up?
You want your project to have a long-term impact? Then it needs to pay off. High profitability can even boost your project?s impact. On the other hand, the following is true for projects that make something available to purchase: no market, no impact. You should therefore develop a rough overview of your costs and income at an early stage. This will also serve as a reality check for your project.
Your business plan is essential for the organisation and management of the project. It simply won?t work without doing your sums and performing a few numerical projections. Keep things as simple as possible, but make sure you do them right.