Start with the decision
Each calculator begins with a specific decision: estimating platform income, setting a client price, comparing operating cost, or understanding take-home earnings. We identify the smallest group of inputs that materially changes that decision and avoid controls that create an appearance of precision without improving the result.
Keep assumptions adjustable
Platform fee schedules, payout arrangements, geographic mixes, and commercial contracts can change. Where one universal value does not exist, the calculator exposes an assumption rather than hard-coding it. Defaults are examples for exploring the interface; they are not claims about what a particular user currently earns or pays.
Users should replace examples with current account statements, dashboards, contracts, and official documentation. Historical averages should come from matching periods and definitions. For example, revenue from one month should not be divided by a lifetime view count.
Use auditable arithmetic
The formula is displayed with every result. Calculations use ordinary addition, subtraction, multiplication, division, and percentage adjustments so a result can be reproduced in a spreadsheet. We avoid opaque scoring systems and do not connect to private platform accounts.
Outputs are rounded for readability, while calculations retain the underlying values in the browser. Annual run rates multiply a monthly estimate by twelve and do not predict seasonality or growth.
Separate revenue, fees, and cost
Gross revenue is not profit. Where appropriate, calculators distinguish platform or payment deductions from delivery cost and ongoing overhead. Owner labor is highlighted when excluding it would make a business appear more profitable than it is economically.
Handle uncertainty honestly
Results are estimates, not guarantees. Tool copy identifies important exclusions and recommends conservative scenarios for fixed commitments. Users remain responsible for taxes, legal obligations, contracts, and confirming current platform rules.
Corrections and updates
We review formulas when a tool changes and update explanatory material when known program changes make it misleading. If you identify an error, send the calculator URL, the disputed assumption, and a supporting source through the contact page. We prioritize errors that could materially change a user’s decision.