Can App fee money collected in create payment api be tested using sandbox accounts?

Thanks Bryan. Want to make sure my understanding is correct. Below is the transaction screenshot taken from Seller Sandbox dashboard(named Seller Test Account). It shows the app fee collected for the source - Default Test Account(It is a default sandbox test account). Does it mean the app fee collected will be shown in Balance section of Default Test Account(In case of Prod) and the remaining amount transferred will be shown in Seller Test Account Balance(Same if in case of Prod)?