Math code to Deduct 15% Discount of Total

[johnwboyd]

How can I get the total to automatically deduct 15%? Here’s the code base:

[php]

            <tr >
              <td width="163">Product</td>
              <td width="134" nowrap="nowrap">Payment Method </td>
              <td width="46">Price</td>
              <td width="56">Qty</td>
              <td width="48">Total</td>
              <td width="59">Remove</td>
            </tr>
            <?php

for ( $counter = 1; $counter <= $_SESSION[“cnt”]; $counter += 1)
{
if(($counter%2)==0)
{
?>

<?php
}
?>







<?php
}
?>

<?php echo($_SESSION["title".$counter]); ?>	<?php echo($_SESSION["paymentmethod".$counter]); ?>	$<?php echo($_SESSION["price".$counter]); ?>	<?php echo($_SESSION["qty".$counter]); ?>	$<?php echo($_SESSION["total".$counter]); ?>
	Sub Total:	$<?php echo($_SESSION["grandtotal"]); ?>
- Discount %:	15
Shipping:	$0
Grand Total:	$<?php function add($x,$y) { $total=$x+$y; return $total; } echo add($_SESSION[“grandtotal”],0); ?>

[/php]

[m11]

With a little simple math?

[php]
$price = 100;
$discount = $price * .15;
$total = $price - $discount;
[/php]

[johnwboyd]

Thank you. But how to integrate this code? Sorry but I am not that savvy to integrate orange to apple so to speak. I need the exact code as it would be included in the base sample I gave… pls…

[johnwboyd]

This doesn’t work but maybe something like this will work?

[php]<?php $price = “grandtotal”;(
$discount = $price * .15
$total = $price - $discount;) echo($_SESSION[“discount”]); ?>[/php]