Financial Modeling for Startups: An Introduction
The issue is forecasting revenues.<p>Zoom in and the issue is forecasting unit sales.<p>Zoom in and the issue is forecasting new unit sales.<p>In the example, this line does a lot of the work in the model: "Forecasting New Subscriptions (line 10). We've just entered hardcodes here for simplicity, but these could be the result of calculations related to a marketing / sales funnel"<p>I submit that this single assumption will carry more weight than the rest of the model, and is the most difficult to forecast.