No, not quite. What I am after is a total of actual cost to-date against the total budget cost to-date. What the standard reporting provides is just the actual cost and budget per month and not running totals. The Actual Cost to-date and actual revenue to-date are easily available, but the budget amounts aren't.
I have found a solution for it by creating data snapshots using the GetTotalFinancialSummaryForGivenPeriod() function e.g.
Budget Cost to-date = GetTotalFinancialSummaryForGivenPeriod(CurrentObject(),'PlannedBudget',$StartDate,Today())
Budget Revenue to-date = GetTotalFinancialSummaryForGivenPeriod(CurrentObject(),'PlannedRevenue',$StartDate,Today())
I can then plot these against the actuals (also snapshot'ed). This gets me what I need for now.