I got a new job as a contractor but I haven't got Windows or Office to use their Excel spreadsheet template. What they do is type something like "4 ridge vents" and it automatically calculates this "each vent is $3 there are 4 so it will cost $12" and it adds that to the last column and adds that number to the "total" cell. Is there a way to set this kind of function in Pages '09? I wouldn't mind entering each and every item like plywood and vents and install charges. Thanks in advance.