Answer:
Forecasting sales would be 3 type.

1. Seasonal ( festivals, events, famous dates, sports events, movie manias.. etc)
2. Demand based ( Completely depends on the demand our product has now and in the future).
3. Creating new waves (People get behind the new and happenings like crazy).
First answer by Aronsmith. Last edit by Aronsmith. Contributor trust: 1 [recommend contributor recommended]. Question popularity: 0 [recommend question].