here is the script: just copy and paste into a text editor like notepad and save it as webune-tax.php then upload to your wesbite and open it with your broswer and see it in action.
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Sales Tax Function</title>
</head>
<body>
<p>This Function Script Created By Webune.com</p>
<p><img src="http://www.webune.com/images/headers/default_logo.jpg"></p>
<form name="form1" method="post" action="">
Price:<br>
<input type="text" name="price" value="<? echo $_POST['price']; ?>">
(example: 49.00) <br>
<br>
Enter Sales Rate:<br>
<input type="text" name="tax_rate" value="<? echo $_POST['tax_rate']; ?>">
(example: 8.25) <br>
<br>
<input type="submit" name="Submit" value="Submit">
</form>
<hr width="200" align="left">
<?
$Subtotal = $_POST['price'];
$Tax = round( (($_POST['price'] * $_POST['tax_rate']) / 100 ), 2);
$Total = ($Tax + $Subtotal);
?>
Subtotal: $<? echo $Subtotal; ?><br>
Tax : $<? echo $Tax; ?><br>
Total: $<? echo $Total; ?><br>
<p align="center"><a href="http://www.webune.com">More Free PHP Scripts >></a> </p>
</body>
</html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Sales Tax Function</title>
</head>
<body>
<p>This Function Script Created By Webune.com</p>
<p><img src="http://www.webune.com/images/headers/default_logo.jpg"></p>
<form name="form1" method="post" action="">
Price:<br>
<input type="text" name="price" value="<? echo $_POST['price']; ?>">
(example: 49.00) <br>
<br>
Enter Sales Rate:<br>
<input type="text" name="tax_rate" value="<? echo $_POST['tax_rate']; ?>">
(example: 8.25) <br>
<br>
<input type="submit" name="Submit" value="Submit">
</form>
<hr width="200" align="left">
<?
$Subtotal = $_POST['price'];
$Tax = round( (($_POST['price'] * $_POST['tax_rate']) / 100 ), 2);
$Total = ($Tax + $Subtotal);
?>
Subtotal: $<? echo $Subtotal; ?><br>
Tax : $<? echo $Tax; ?><br>
Total: $<? echo $Total; ?><br>
<p align="center"><a href="http://www.webune.com">More Free PHP Scripts >></a> </p>
</body>
</html>