I am using the vertexcreator transformer to convert the Lat/long field values into points but the output puts the points in the wrong location. I noticed if I change the data within the spreadsheet so that the longitudinal values are negative (I live in Canada) then the same script works fine. Since I am getting this spreadsheet from a downloaded location I would preferred to have the FME script make the longitude field negative values for me instead of me fixing the spreadsheet before it is consumed into the FME script.