How to use my own library multiple times

Hi,

Approach that will work for you, with your source in application/libraries/Pricecalculator.php :

$this->load->library('pricecalculator');
$a = new Pricecalculator(Product1,Rate1);
$b = new Pricecalculator(Product2,Rate1);

is this the right way or is there a better solution how to do that? Is this a case for a library?