Hi I am looking for something that will add a set amount to the usps rate. I have the rates being pulled live from USPS but would like to add a handling fee to this but I need this done blind. Meaning if the rate comes back as $5.30 I need it to add my fixed $2.50 to this resulting in $7.80. Is this possible?
looking for the lowest bid as this should be simple for someone familiar with opencarts cart.
VQMOD would be a plus but not necessary.