Past performance is not an indicator of future results. If you want to look at the future, you need to combine previous results with possible future scenarios.

Past performance is not an indicator of future results. If you want to look at the future, you need to combine previous results with possible future scenarios. Is business to a particular restaurant different based on the season, are there cash flow problems to consider? Regression or historic modeling is not that great - this includes where it is frequently used such as network analysis, stocks, etc. However, some of the drill down type things might be useful to monitoring food cost or helping to do future modeling. It depends on what features you have when you are near an MVP. I am also not sure what this dones that a spreadsheet template couldn't do at this point. For the rainy day scenario, are you asking them to put this in, or will you take their location with weather data to automate this analysis?