Shifting down Cumulative Total by one row

I have created a calculated column 'CumulativeTotalColumn' using this dax formula:

CumulativeTotalColumn = 
var rowdate = Journals[JournalDate] 
Return
   CALCULATE(
    SUM(Journals[Total]),
     FILTER(
        'Journals',
        'Journals'[JournalDate]<= rowdate)
     )

 The result:

Now, I need another calculated column, 'CalculatedTotalColumnShifted' that shifts the 'CumulativeTotalColumn'  down by one row. i.e. 1st March 2016 has the CumulativeTotal of 29 Feb, 2nd March has the Cumulative Total of 1st March and so on.

Any ideas?

Thank You