Step by Step User Guide Sales Controller is very simple to use. Simply follow the steps below: 1. Add your past sales history Enter the start and end dates of your sales history in the Main Menu. Click on the Sales History tab to go to the spreadsheet where you can enter your data. Either enter the data manually or copy / paste it from some other application. You can enter up to six years of data. We recommend you add between 3 to 6 years of history to give Sales Controller a better chance of finding the trends. 2. The Trend Component The Trend Component is calculated automatically using linear regression to fit the best trend line to deseasonalised sales. 3. Fitting the business or economic cycle To fit the cycles you need to adjust the variables below to minimize the unexplained sales index: i. Centre Normally this will be approximately 1. In effect, it’s the mean value about which the economic cycle oscillates. A value close to 1 is to be expected as the cycle generally has the same positive as it has negative effect on sales. For the rough fit enter 1.0000 under the Current column for the appropriate product. ii. Top The top of the cycle is the month number when it reaches its maximum. If, for example, the top of the business cycle is in the 3rd month of the forecast you should enter 3 for the Top value. This value is found by trial and error and your own experience of the business cycle of your products. iii. Life The life of the cycle refers to the number of months between the first top of the cycle and the next. If the forecast started in January with a Top of 1 and a Life of 12, the minimum point in the cycle would be July and the next maximum would be in the following January. As above, this value is found by trial and error and your own experience of the business cycle of your products. iv. Height The height of the economic cycle will be close to the Standard Error of the Y Estimate (Std. Error Est.) shown at the top of each products business cycle variables. It basically tells you the amount by which the data deviates from the mean value. For now, enter this value as the height of the economic cycle. The next step is to try and improve the cycle's fit by using various alternative values. Once you’ve entered the above values try a few alternatives to see if you can reduce the unexplained sales value. You can use the Last Try column to keep a record of your last results. 4. The Seasonal Component The seasonal component is calculated automatically using a 12-month moving average to remove the seasonal fluctuations from the sales. 5. Results All that remains to do now is check your results. There are three worksheets that you can use for this: i. Actual V’s Predicted Sales Click the Actual V’s Predicted tab to see how well your sales history fits the time-series analysis you have just created. This will give you a good indication as to the accuracy of your forecast and whether or not you need to review some of the above procedures. Remember your Sales Controller forecast is only a basis for further discussion. Once you’ve transferred it to Sales controller you can modify it based on your own judgement. ii. Forecast Graphs The Forecast Graphs worksheet gives you your forecast both graphically and summarized by total sales per year. Use this for the basis of your on-going discussions to refine your forecast. iii. Forecast Use this worksheet to copy / paste the values into Budget Controller or another application or spreadsheet. Remember to use Paste Special and select values unless you want to dynamically link Sales Controller with Budget Controller. Once in Budget Controller you can make your final adjustments either directly to the data or using Budget Controller’s various adjustment functions. Congratulations, the first stage of you forecast is complete. Remember, however, that trends based on historical sales data provide no guarantees for the future and, in this first stage, you have only created a basis for further discussion and review. We recommend you transfer the data into Budget Controller where you can make the final adjustments. You can either Copy/Paste the values or add a dynamic link between the two applications (see Budget Controller’s User Guide – “Tips & Tricks” to see how to link workbooks). |