There are two ways to enter a forecast for an RPGAbbreviation of region, practice, group..
Depending on whether you entered a total or contributing forecast, the relevant forecast row will automatically calculate revised figures. For example, let's say you enter a Worst Case of 2,000 USD as a total forecast for your region; in this case, the value of Worst Case for This Region will update so that forecasts for the individual region and the sub-regions equal the total forecasted amount.
The forecast can now be viewed and edited on the Services Forecasts page, assuming you have permissions.