english: So, let's charge them a weekly subscription fee to use our program, but -- if the students complete their weekly maths goal, we'll refund the subscription amount directly into the child's bank account.
non_english: Stoga, zašto im ne bismo uveli nedeljnu pretplatu kako bi koristili naš program, ali - ukoliko učenici ispune svoj nedeljni cilj u matematici, mi ćemo refundirati taj iznos direktno na bankovni račun deteta.