When working with two budget versions, many organisations start with an Approved Budget, and then have a second version which is a Reforecast that is updated throughout the year.

You can create a Reforecast budget by including Actuals to date, and then referencing the original budget for the remaining period, these amounts can also be further updated as required to more closely reflect changes that have occurred during the year.

In the Reports > Builder Menu, in the left selection there is a section Multiple Budgets, choose one of these reports so you can see the variances between Actuals & Approved & Forecast Budgets all in one report.