Show your calculations.

Yea upload a picture, probably an issue with where the fields are placed (just guessing it's in the footer) and what the fields are bound to/calculations

Ok, in my explanation I simplified it as I didn't think it would matter.  The actual field names involved are;
Laborhours (this will be the number of hours)
AVSRate this is the base rate
AVSTotal this is the total rate (labourhours * AVSRate)

One other item, there is a charge type, depending on the charge type will change the calculation as:
Expenses - no calculation, copy the avsrate to avstotal
Surge - multiply avsrate by laborhours
OT - multiply avsrate by 1.5 (to account for OT rate) then multiply by laborhours.  

Here is the code:

Private Sub AVSRate_Exit(Cancel As Integer)
If ([ChargeType] = "Expenses") Then
    [AVSTotal] = [AVSRate]
ElseIf ([ChargeType] = "Surge") Then
    [AVSTotal] = [AVSRate] + [LaborHours]
ElseIf ([ChargeType] = "OT") Then
        [AVSTotal] = ([AVSRate] * 1.5) * [LaborHours]
End If
End Sub

First bit of advice: use AfterUpdate, not OnExit. Aside from that, your calculations look fine.

I'll try the afterupdate, but I feel I had done that before with the same result.  It is taking the first record's AVSRate and using that for all the records, making the AVSTotal incorrect.

Make sure all your controls are properly bound to a field in the current record.

They all are.

Also, make sure that they field record source is the same as the field name

The code for "Surge" does not match your description as to what it means.  Code:   [AVSTotal] = [AVSRate] + [LaborHours]; your description:  Surge - multiply avsrate by laborhours.