Refer to THIS guide.
Common configurations
Small Swedish B2C shop, single currency:
Bank Costs: 6570
Outgoing Tax: 2611
Incoming Tax: (empty)
Penny Rounding: 3740
Currency Profit / Loss: (empty — folded into Penny Rounding)
Multi-currency shop selling across EU (OSS):
Bank Costs: 6570
Outgoing Tax: 2611
Incoming Tax: consult your accountant
Penny Rounding: 3740
Currency Profit: 3960
Currency Loss: 7960