In the previous section we highlighted some forecasting trends, in this section we will look at some simple forecast calculations.
| Month | Sales |
| Jan | 10 |
| Feb | 12 |
| Mar | 15 |
| Apr | 20 |
| May | 25 |
| Jun | 30 |
| Jul | 35 |
| Aug | 40 |
| Sep | 30 |
| Oct | 20 |
| Nov | 10 |
| Dec | 30 |
| Total Sales | 277 |
Table 16: Sales Trends example
In order to predict the Sales for the following January we add all the months sales which gives us a total sales of 277, then divide the total of 277 by 12 (this the history we have) which gives us a forecasted sale of 23 for January the following year:
| Total Sales | Number of Periods |
| 277 | 12 |
| 23.08 |
Table 17: Average Sales example