I have 2 versions of an excel spreadsheet calculator that need to be converted to PHP and to be compatible with latest version of wordpress (add the code directly to a page or as a shortcode (preferred method). It has to be clean php not hacked and thrown together as fast as possible. I need it be an exact duplicate of the xls sheet attached including css. Only estimates that Include the word ORANGE will be reviewed.
I forgot to include: if possible it would auto calculates values after the user changes a field.