I have created the following query:
SELECT
'A Review' AS [Work Stream],
Current_Wk.Person_Count,
Previous_Wk.Person_Count,
IIf([Current_Wk].[Person_Count]=[Previous_Wk].[Person_Count], "No Change", IIF([Previous_Wk].[Person_Count]>[Current_Wk].[Person_Count], "-" &...