I am using PayPal buttons on an HTML page for customers to pay for a certain service. The return URL query parameters look something like this: (url to my site)\amt=50&cc=AUD&cm=406&st=Completed&tx=5GF55962MF7023235 Where amt is the amount debited and cm is the comment that I added to the PayPal call (with a transaction ID in my database) My client wants me to also record the fee charged by PayPal for this transaction. Is there a way I can have PayPal return this with the return parameters?
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