Formula and Explanation
Total fee = order amount x payment rate + fixed fee + monthly plan cost / monthly orders
The calculator intentionally uses user-entered fee assumptions and does not hardcode an official fee schedule because Shopify fees can differ by plan, payment method, country, currency, and date. This keeps the estimate transparent and easier to audit.
Variable descriptions
- A(currency)
- Order amount: Gross order amount being modeled before estimated fees.
- r(%)
- Payment or transaction rate: Percentage fee entered by the user.
- F(currency)
- Fixed fee: Flat fee per order entered by the user.
- P(currency)
- Monthly plan cost: Recurring plan cost allocated across expected monthly orders.
- N(orders)
- Monthly orders: Expected order count used to allocate the monthly plan cost.
