Added a total price column to the table so the user can see the price as
they put % values in.

Added a check when a value is put into the % to automatically click the
set box.

Fixed mispelling of Commercial

Changed prices to always output as x.00, truncating (Rounding down) the
decimal.
Added confirm dialog when saving changes.
Changed 'qty' field to 'set' to match the change from int to boolean