I am having an issue with my FormCalc script on LiveCycle Designer forms. Here is what I get

My form has 11 Rows (top row[0] is text only) and 9 columns with columns 4 (parking),7 (miles),8 (rate) being the values I'm trying to total.
Here is the formula I've been using:
form1.Page1.table.Row1.total::calculate - (FormCalc, client)
$.rawValue = parking+(miles*rate)
This was working just fine and stopped working one day. Any help and suggestion would really be appreciated.