- Because of the likelihood that some or many of the actual industry averages will deviate, perhaps slightly or perhaps sizably, from your estimates.
- Because the forecast is based on the assumption that the actual growth rate in branded footwear demand will fall at the mid-point of the projected growth interval (for instance, if the projected growth for north America is 5-7% in year 11, the forecast is based on an assumed 6% growth) the further the actual growth is from the mid-point of the projected growth range and the closer it is to the extremes of 5%, 7% the greater the error in the branded sales forecast.