I asked the fellow who created this report internally. Here was his response, which I'm passing on to you. (Thanks Doug!)
NOTE: I've also attached the .RDL file he forwarded along.
WITH
MEMBER [Measures].[ValueOfCompletedWorkAsOfNDaysAgo] AS
(
[Measures].[Microsoft_VSTS_Scheduling_CompletedWork],
[Work Item].[Microsoft_DeveloperDivision_Classifications_Group].[All],
[Work Item].[Microsoft_DeveloperDivision_Classifications_Project].[All],
[Work Item].[System_Title].[All],
[Work Item].[System_State].[All],
[Work Item].[Microsoft_DeveloperDivision_Features_RiskLevel].[All],
STRTOMEMBER(@MDXDateForWorkCompletedSinceDate)
)
MEMBER [Measures].[ValueOfRemainingWorkAsOfNDaysAgo] AS
(
[Measures].[Microsoft_VSTS_Scheduling_RemainingWork],
[Work Item].[Microsoft_DeveloperDivision_Classifications_Group].[All],
[Work Item].[Microsoft_DeveloperDivision_Classifications_Project].[All],
[Work Item].[System_Title].[All],
[Work Item].[System_State].[All],
[Work Item].[Microsoft_DeveloperDivision_Features_RiskLevel].[All],
STRTOMEMBER(@MDXDateForWorkCompletedSinceDate)
)
MEMBER [Measures].[FeatureEndDate] AS
EXTRACT(
NonEmpty(
[Microsoft_DeveloperDivision_Features_DateEnd].[Date].[Date] *
[Work Item].[System_Id].CurrentMember,
[Measures].[Current Work Item Count]
),
[Microsoft_DeveloperDivision_Features_DateEnd].[Date]
).Item(0).Member_Value
SELECT
Non Empty
{
[Measures].[FeatureEndDate],
[Measures].[Current Work Item Microsoft_VSTS_Scheduling_CompletedWork],
[Measures].[Current Work Item Microsoft_VSTS_Scheduling_RemainingWork],
[Measures].[ValueOfCompletedWorkAsOfNDaysAgo],
[Measures].[ValueOfRemainingWorkAsOfNDaysAgo]
} ON COLUMNS,
NonEmpty(
STRTOSET(@WorkItemMicrosoftDeveloperDivisionClassificationsGroup, CONSTRAINED) *
STRTOSET(@WorkItemMicrosoftDeveloperDivisionClassificationsProject, CONSTRAINED) *
[Work Item].[System_Id].[System_Id] *
[Work Item].[Microsoft_DeveloperDivision_Features_RiskLevel].[Microsoft_DeveloperDivision_Features_RiskLevel] *
[Work Item].[System_Title].[System_Title],
[Measures].[Current Work Item Count]
) DIMENSION PROPERTIES MEMBER_CAPTION, MEMBER_UNIQUE_NAME ON ROWS
FROM [Current Work Item]
WHERE
(
[Work Item].[System_WorkItemType].&[Orcas Feature],
STRTOSET(@WorkItemSystemState, CONSTRAINED)
)
<end quote