[HELP] Donation Information Script

[Blackboy0]

Here's the Script I have right now:

<?php
// CREDITS //
// Blackboy0 for Script //
// 0x0f7afc68 for Total Cash $sql //

$host = "host";  //db host
$user = "username";       // username
$pass = "password";       // password
$don_data = "donordb";  // donator db
$port = 3036;  //port

$conn = mysql_connect($host, $user, $pass) or die(mysql_error());
mysql_select_db($don_data, $conn) or die(mysql_error());

$sql = "SELECT COUNT(*) FROM log WHERE entry BETWEEN '1' AND '150'";
$sqlquery = mysql_query($sql) or die(mysql_error());
$don = mysql_result($sqlquery,0,0);

$sql = "SELECT SUM(amount) FROM log";
$sqlquery = mysql_query($sql) or die(mysql_error());
$amount = mysql_result($sqlquery,0,0);

echo "Donations: " . $don . "<br>\n";
echo "Total Cash: $" . $amount . "<br>\n";

mysql_close($conn);
?>

So that shows all Donations and the Total Cash that has been brought in in a simple Format of "____ : ______".

Alright, I wanna do this:

The goal is $15.00, alright? So I want it to update whenever we get a Donation, to say $__.__. So, I was thinking that it like do the SUM thing from before, but then Subtract it from 15.00. I've just started doing this kinda stuff with MySQL PHP, so I dunno all the Commands <_< It'd be great if somebody could help me

[Blackboy0]

Alrighty... I guess not alot of people view the PHP Forums then?