Set Expression

[upaliwije]

I have following set expression in QV Document

=fabs((Sum({<SECTOR={"COLOMBO"}>}ACTUAL)/$(=$(=vActual))))

This is working well and I Want to modify it to include sector in 2nd part of expression as follows

=fabs((Sum({<SECTOR={"COLOMBO"}>}ACTUAL)/$(=${<SECTOR={"COLOMBO"}>(=vCact))))

Then it does not work . Can you pls help me to correct it

[Anil_Babu_Samineni]

What does the vActual & vCact here?