Quote generator my webdesign company

[Jaynesh]

Im making a Quote generator.

Ive made the form, but a little trouble with the PHP part.

I could use this method:

<?php
if(isset($_POST['style']) == 'Budget') {

if ($_POST['style'] == 'PHP' && $_POST['due'] == '1 week' && $_POST['pages'] == '3-10')
{
echo 150 + 150 + 50 / 3;
}

elseif ($_POST['style'] == 'PHP' && $_POST['due'] == '1 week' && $_POST['pages'] == '10-20')
{
echo 150 + 150 + 100 / 3;
}

elseif ($_POST['style'] == 'PHP' && $_POST['due'] == '1 week' && $_POST['pages'] == '20+')
{
echo 150 + 150 + 200 / 3;
}



}

And so on...

?>

but it will take very very long to program each option, so is there an easier method to do this?