If condition in SAP Script

Hi,

I have written a condition in the text elements like below.

IF &EKPO-NETWR& GT '300'

Print some text.

ELSE

Print other text.

ENDIF

But its not working.If i put EQ or NE,its working fine.But if i put GT,GE,LT,LE or >,< ,its not working.

Suggest if there is any other symbol to be used in SAP Sccript for GT,GE.

Thanks,

Aparna.