compare it to what you know did happen. Is the forecast model you used close enough for your purposes? If so, use it. If not, try another model and see how well it would have done. Keep doing that until you find a model that seems to work for you. Your knowledge of your business will be critical in choosing models that make sense to try. Key point: Avoid models that require more mathematical or statistical expertise than your forecasters and users of the forecast have. If your business requires complex models, and some do, then make sure the appropriate personnel are trained in their use and interpretation. Don't trust the software alone. Rebecca Morgan's Oklahoma City Sales Training - Forecasting Is Never Easy Consulting Marketing Sales Quote There is a real magic in enthusiasm.It spells the difference between mediocrity and accomplishment. Unknown