DAY 2 PHP PROGRAMMING - 2

http://php.flashwebhost.com/ramesh/day-2/billing-2.php

Code:
<?php
$cpu_price = 14000;
$monitor_price = 8000;
$discount = 0.12;
$total_cost = $cpu_price + $monitor_price;

echo 'Total cost = Rs: ' . $total_cost . '/-';
echo '<br>';
echo 'Price After Discount = Rs: '. ( $total_cost - ($total_cost * $discount)). '/-';