Hi, everybody. We might not know everything but we do have some data. For example, here are the reservation counts Tesla released:
373,000 net reservations on 15 March 2016.
Source
455,000 net reservations on 28 July 2017.
Source
The difference is 439 days. That means (455,000-373,000)/439= 187 reservations per day. However, immediately after the 28 July 2017 delivery event, they had 1,800 reservations per day, based on this statement:
All this data is part of the calculations. I have just made some adjustments today. By the way, if you are not within the first 60% of global reservations, the estimator is less accurate.