Summing a measure column having break based on another column
I have the following sample webI report.
I want to calculate total cost for all vendors having status "Y". In the report break is applied on 'Vendor No.' and 'Cost' Column.
I have used the following formula
=Sum(Cost) In Break where (Status="Y")
But it is giving the total cost as 9000. It is summing up the two rows of "Y" for vendor "100" to 2000 rather than taking only 1000. The correct total cost value will be 8000 ie, '1000' from Vendor No. '100', '2000' from Vendor No.'200' and '5000' from Vendor No.'400'.
Please suggest a formula that will show the correct total cost.
I am using SAP BOXI R3.1 version.