How to show a label based on column value in tablix in rdlc

Question

I have multiple value in tablix in rdlc in c#,I want to find ,if any particular column containing < 400 in any row in rdlc in c#

slno  total

1     3400

2        230

3     3500

4       500

 

since row 2 contains less than 400 ,how i will find this  in tablix in rdlc in c#