Hi Snehasish,
Hmm... did not work with 0CRM_SALES_CONTR_I before.
I assume the dump occur at CRM side, the standard code of extractor 0CRM_SALES_CONTR_I.
I think there are a few things you can try...
1) Try to filter out the affected record with selection in InfoPacket, if it can be ignored.
2) Logic "c = a / b * 100" and data type "DEC(5,2)" look like a % calculation to me.
I wonder if fontend fail to validate some invalid values... So maybe you can just correct the value via fontend and rerun the extraction
3) If the input value is correct, then it should be some bug, you may open a OSS message for a fix
4) If you want to modify the standard program for a quick and dirty fix, you may need to register a SCCR key at service market palce.
Regards
Bill