How to redeem voucher with a max % of cart amount?

[hyyu]

Version. Prestashop 1.6.1.6

 

Hi! Recently I am working on the cart rules & vouchers.

If we do not want any order would be redeem to $0 (excluding shipping & handling), can Prestashop do that?

 

For instance, if customer A owns $100 voucher, this customer made a purchase with $150.

Can I set a rule that only 50% of the order can be redeem by voucher?

 

In this case, the maximum amount can be redeemed is $75 (50% of the $150 order).

Therefore, customer A can redeem $75 in this order, and pay another $75 by credit card.

( and he get a new $25 voucher eventually.)

 

It's really appreciate if there is any way to approach.