ferdi.stz

[noble plinth]

An applciation fee is the amount defined by the Connect platform, for their 'fee' for handling the payment

That is entirely optional. The processing fee is the amount deducted from the payment by us (not optional)

[wet cradle]

is it possible to deduct the processing fee from a top up balance and not from the transaction itself?

[noble plinth]

It is not, no

[wet cradle]

Let's say a guest account is buying something for 50$, the fee would have to be deducted from that 50$. So the payment to the connected account would be 50%-(X)
Is there then a way to set up something that allows me to send 50$-(x)+(x) to the connected account?

(where X = processing fee)

[noble plinth]

We don't offer a way to automatically calculate the given fee for a payment, no. If that's important to you you'd need to calculate that yourself and then compute the application fee accordingly

[wet cradle]

Is it possible to get a formula for how the Processing fee is calculated?

[blazing wagon]

Stripe fee depends on many factor, so no there's no easy way to know it in advance