If sending $40, the amount that will go to fees is $2.49 and the recipient will receive $37.51. That's 6.23% going to fees, effectively.
* Using International fee rate of 4.99% + $.49 (Invoicing, PayPal Checkout, Venmo)
To receive $40, a payment of $42.62 should be sent. $2.62 will go to fees. That's 6.15% in fees, effectively.