rendered paste body<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title>untitled</title> <style type="text/css" media="screen"> ul { list-style-type: none; } </style></head><body><form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="get" accept-charset="utf-8"> <ul> <li><label>Purchase Price</label><input type="text" name="purch" /></li> <li><label>Sale Price</label><input type="text" name="sale" /></li> <li><input type="submit" value="Submit" name="submit" /></li> </ul></form><div><?php if (isset($_GET['submit']) ) { $purch = $_GET['purch']; $sale = $_GET['sale']; $return = ((($sale - $purch)/$purch)*100); echo round($return,3); echo"%"; echo"" }?></div></body></html>