Hi Sudheer,
First of all, please read my document: How-To: Write default.lgf
Don't use *XDIM_MEMBERSET in default.lgf!
If you want to calculate [SPL_DISCOUNT] as [DISCOUNT]*0.1 when user enter [DISCOUNT] then:
*WHEN ACCOUNT
*IS DISCOUNT // Hope that DISCOUNT is a member of ACCOUNT dimension!
*REC(EXPRESSION=%VALUE%*0.1,ACCOUNT=SPL_DISCOUNT)
*ENDWHEN
And nothing more!
Vadim