Unable to change font color of sub report data based on conditions

[Varsha147]

Hi Team,

I have one sub report added in group footer section. I want to change the font color of sub report data based on row header. 

Note I have created group based on row header 

I have wrote below formula but it's not working 

If  groupName  ({reportname.rowheader}) <> "amount" then crWhite else crBlack

Is the formula correct ? 

Thanks in advanced