Question : access update set

Hi,

I have a form called ABfrm1 this form is bound to a table called ABTable, the ABTable has the following fields:
id (autonum), firstname  (text), lastname  (text), age (number), rate (number) , total (text)

I have an unbound  object (text) on my form named newtotal, this object has the following control source =[rate]*1.75.

I have a command button called  cmdupdate at the bottom which when clicked i want it to update the current record and set the field total to the calculated value in the form object.

I was playing with some code but get the error message:runtime error 3464 datatype mismatch in criteria expression.

below the code:
Private Sub cmdupdate_Click()
strSQL = "UPDATE ABTable" & _
    " SET ABTable.total = """ & Me.newtotal & _
    """ WHERE ABTable.ID = """ & Me![ID] & """"

DoCmd.RunSQL strSQL

MsgBox "the new value is" & Me![total]
End Sub

any ideas on how i can achieve my goal?

Answer : access update set

If String ...

strSQL = "UPDATE ABTable" & _
    " SET ABTable.total = " & Chr(34) & Me.newtotal & Chr(34) & _
    " WHERE ABTable.ID = " & Chr(34)& Me![ID] & Chr(34)

Or a combination of the two...

mx