Explore Payments & Transactions calculators and related business decision models on Martzine.
Payments & Transactions collects closely related calculations so you can move between specific models without returning to the top-level library.
These pages cover narrower Payments & Transactions questions and are intended to be opened when the standard calculator is not specific enough for the task.
Use the individual page for the formula, working inputs, examples, limitations and related long tail explanations.
Open the calculator that matches the decision you are reviewing. Focused sub-calculators are included where the broader model has a recurring narrower question.
ACH vs Credit Card Cost uses monthly processing volume, gateway a fee (%), gateway b fee (%).
Chargeback Cost uses chargebacks, fee per chargeback, average lost sale.
Effective Payment Fee Rate uses total payment fees, processed revenue.
Invoice Payment Fee Impact uses invoice value, payment fee (%).
Payment Processing Fee uses processed sales, percentage fee (%), fixed fee per transaction.
Refund Cost uses refunds, processing fee per refund, average refund amount.
Subscription Payment Fee uses subscription revenue in period, payment fee (%), fixed fee per transaction.
Transaction Fee Break Even uses fixed cost difference, percentage fee difference (%).
Martzine’s editorial work is led by Bilal Ahmad, founder of Martzine, with support from his team across content, research and technical development. Team members contribute according to the subject and assigned work, from practical explanations and source research to tool functionality and website improvements.
Martzine publishes and maintains the tools, calculators, references, resources and articles on this website. Our editorial work covers clear instructions, calculation assumptions, useful sources and corrections when an issue is identified.
A result depends on the inputs and the limits described on its page. If you notice a calculation error, broken feature, unclear explanation or information that needs correction, please send us the page link, the details and any supporting reference. We will assess the report and correct confirmed issues as soon as practical.
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