Paypal merchant accounts are set up so the seller always pays the paypal fee. So Paypal should always be refunding 100% to your card, because the merchant has already paid the fee.
And also, the numbers you gave show a paypal fee of 3x what paypal charges for a tranaction, which is less than 3%.
Not trying to argue over this but you still haven't really answered my question. How can I receive, in my Paypal transaction log, a full refund from the merchant. The full amount is in my Paypal inbox +$1234 refund from merchant. Then it wasn't until I got an email from the credit card company that I got a refund, that I see it is $113 less than that. No fees or documentation of any kind in my Paypal transaction list. None. To me, it seems that once that full +$1234 shows up in my Paypal account from the merchant, they are done. From that point on it's Paypal to the credit card company.