Issue in Conditional Calculations in BEX formula

Hi Experts,

I need to create a new formula variable in BEX query using conditional clause. I used the below formula but the ELSE part is not working

( 'ITM_COUNT'' < 1 ) * 'AMOUNT' + ( 'ITM_COUNT' >= 1 ) * ( 'AMOUNT' / 'ITM_COUNT' )

Please suggest me if my above formula is wrong.

Regards

Harish