Ranking Total Report Value by Employee

[gats1527]

WE are generating reports to show top 5 ranks (range can be changed via a filter) for total report value within a given time period and that is working correctly.  Now what we are trying to accomplish is display the top 5 but by employees based on total report values for a certain time period.  See below examples

Rank      EmployeeID    Total Report Value
1              123                      150
2              345                      125
3              678                      100
4              345                       50
5              123                       5

Rank formula is set as rank(total([Expense].[Report Header Information].[Total Report Value]) for report prefilter)

Now what we are trying to have displayed is the top ranking but by employee so employee ID 345 would be #1 ranking because of the 125 + 50 report values totally more that employee ID 123

Rank      EmployeeID    Total Report Value
1              345                      175
2              123                      155
3              678                      100

How would i adjust the ranking filter to accomplish this.

Thank you

Tom