MDX script for member formula in ASO Cube

Summary

Hi, I am trying to write an if/then statement for a member formula using MDX in ASO cube

Content

Below is my attempt:

CASE WHEN IS ([EMEA].currentmember,[G305])

THEN
     (([Total Revenue],[Reported],[TOTREV],[Product],[EMEA])  *
([43910],[Statistical Account],[0000],[No_Entity],[Begbalance],[Active],[GAAP Load])) * -1

ELSE ([Total Revenue],[Reported],[TOTREV],[Product]) *
([43910],[Statistical Account],[0000],[No_Entity],[Begbalance],[Active],[GAAP Load])

END

The credit out of G305 is working as expected but the ELSE part is not working.  Any suggestions?

Thanks!!