How will I charge the Subscriber?

Hi!

Please, I programmed PLSCOM=1-160000 (to have a pulse change every 160seconds instead of PLSCOM=1-16000 (to have a pulse change every 16 seconds), this has been in the system switch for the past 5 days before reverting to the actual PLSCOM=1-16000.
what will be the multipling factor to enable me make an actual charge to a subscriber who has made a successful call for 366 seconds within the past 5 days, if the charge per minute is 2 dolla?

Swift response will be welcomed.
Regards