this is my table structure

lower                upper              price

100                    200                $7.20
200                    300                $8.10
300                    400                $10.90

from here i want to extract the price depend the input  limit value

for eg://  if the limit value  entered in textbox is  150   .it should
navigate the table
and give the correct price for this limit value.

my code is:

Do Until rstAISI4140NQT.EOF
     
      If Txtlimit.Value <= rstAISI4140NQT("upper") And Txtlimit.Value >=
rstAISI4140NQT("lower") Then
             
             
              Txtpkg.Value = rstAISI4140NQT("price")
             
             
              MsgBox (" price calculated ")
             
              Exit Do
              Exit Sub
           
       
       End If
           
       rstAISI4140NQT.MoveNext
       
             
     Loop

by this code i cannot get the price value..i found frm this code that  
operator

"<="  doesnot work in this looping..

plz give me some solution