Answer : Payment Gateway charges is based on the Payment Gateway used by the user. 

As an example, ToyyibPay charges RM1.00/transaction if the payment is through Malaysia FPX method. However, this charge may differ as ToyyibPay reserves all rights to update the transactional charges.

Therefore, if you are a committee member of the mosque, you will need to check the latest updated charges based on the Payment Gateway that you choose directly at the Payment Gateway provider.