Calculations in php language

<html lang="en">
<head>
    <title>variables in php</title>
</head>
<body>
<?php
$price=200;
$vat=0.25;
$totalPrice=($price*$vat)+$price;
echo "Price is: ". $price . "<br>";
echo "vat is: " . $vat . "<br>";
echo "Total Price is: " . $totalPrice;
?>
</body>
</html>

It will produce this;

Price is: 200
vat is: 0.25
Total Price is: 250