Post by quatangtriandep » Tue Feb 12, 2019 4:03 pm

As the title suggests, how can I charge just 20% of the cart total at the gateway?

If the cart total is $100, when the user click on buy now using a gateway such as paypal, the fee to pay in paypal is only $20 (ie: 20%) not $100.

I mean without applying discount vouchers etc... By actually modifying the code.

Anyone here have a clue?


Tue Feb 12, 2019 3:25 pm

Post by Johnathan » Thu Feb 14, 2019 12:16 am

Total-Based Fee/Discount can do this. All you do is set up a Charge with a value like this:


Feel free to take a look at the screenshots and demo site, and if you're interested let me know at if you have any further questions.

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