Hi Ray,
thank you for your reply,
actually it is a possibility but in this case each product invoice payment and the only option I have cancellation insurance which must take into account the subtotal of the basket.
French laws requires us to be transparent, so the client must know what it would cost in total and what it pays for the deposit
So how ; and ; is it possible to calculate the deposit payment on sub-total addition and send this variable to Paypal