Paypal charges me when I receive payments via their system and these are passed on to you, the buyer, on a cost-recovery basis. The fees are calculated as follows (all in NZ$):
(item price + shipping cost) + 6.4% + $1.55.
E.g. you buy a $5 item and the postage cost is $4. 6.4% of $9.00 is $0.58.
9.00 + 0.58 + 1.55 = $11.13 total to pay.
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