Negative TRDDEV Values and Score

Dear All

I have an issue with –ve values in SAP SSM while using Achievement Type. SSM is not considering the –ve values to show correct Score (Status) for the KPI. Is there any way we can sort this out. I am able to classify this into 04 possibilities. Out of which so far I am able to solve 02. 

The threshold for status is  < 95 = Red , >95<100 = Yellow , >100 = Green

For Case 1 I have used PAS Formula = BI_NP_TARDEV = BI_NP_ACT%BI_NP_TAR

For Case 2 I have used PAS Formula

BI_NP_TARDEV = ( (BI_NP_TAR LT 0) *((BI_NP_TAR/BI_NP_ACT) * (-100) )) + ((BI_NP_TAR GT 0) *(BI_NP_ACT%BI_NP_TAR))

For Case 3 and 4 I tried PAS Formula but BSC hanged and showed Data Provider Error.

BI_NP_TARDEV = ( (BI_NP_TAR + BI_NP_ACT LT 0) *((BI_NP_TAR%BI_NP_ACT )) + ((BI_NP_TAR GT 0) *(BI_NP_ACT%BI_NP_TAR))+ (BI_NP_TAR LT 0 + BI_NP_ACT GT 0) *((1 - (BI_NP_TAR/BI_NP_ACT))*100)  )

Thanks & Regards

Mo