Image resize issues

[scrypte]

I made some modifications while trying to get this to work and here is my code

<?php
if (isset($_GET["filename"])) $filename = $_GET["filename"]; 

// Percent Resized
$percent = 25;

// Path
$path = "images/models/".$_GET['modelID']."/products/";

// Get new sizes
list($width, $height) = getimagesize($path.$filename);
$newwidth = $width * $percent;
$newheight = $height * $percent;

// Load
$thumb = imagecreatetruecolor($newwidth, $newheight);
$source = imagecreatefromjpeg($filename);

// Resize
imagecopyresampled($thumb, $source, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);

// Save
imagejpeg($path.$thumb,"",100);    

?>

This is the error I am recieving:

Fatal error: Allowed memory size of 25165824 bytes exhausted (tried to allocate 4500 bytes) in /data1/test/docs/jonathan/model/thumbnail.php on line 16

which is this line:

$thumb = imagecreatetruecolor($newwidth, $newheight);

Any Ideas???

I already got this code from another post that is already resolved and i'm now stuck.

[cheerio]

make your percent .25 instead of 25, or divide newwidth and newheight by 100

Also use ceil() or intval() to make your new width and height a whole number