If sending CHF0, the amount that will go to fees is CHF0 and the recipient will receive CHF0. That's 0% going to fees, effectively.

* Using custom fee rate of 3.4% + CHF0.55

To receive CHF0, a payment of CHF0 should be sent. CHFn/a will go to fees. That's 0% in fees, effectively.

* Using custom fee rate of 3.4% + CHF0.55