Explore Profitability calculators and related business decision models on Martzine.
Profitability collects closely related calculations so you can move between specific models without returning to the top-level library.
These pages cover narrower Profitability 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.
Break Even Clients Calculator keeps the arithmetic in one place while you review Monthly fixed costs, Average client revenue. The model is most useful when its assumptions remain visible.
Contribution Margin Calculator keeps the arithmetic in one place while you review Selling price, Variable cost. The model is most useful when its assumptions remain visible.
Run Freelance Profit Calculator before the next business decision when you need to see Revenue, Business expenses. Keep estimates separate from verified figures.
Run Freelance Project Margin Calculator before the next business decision when you need to see the gap between revenue and modeled cost. Keep estimates separate from verified figures.
Freelancer Profit Calculator is built for Freelance revenue, Business expenses. Start with one real case and keep the period and definitions consistent when you compare another case.
Use Gross Margin Calculator when the question is Revenue, COGS. The result is easier to review when the source of each input is recorded with the number.
Gross Profit Calculator is built for Revenue, COGS. Start with one real case and keep the period and definitions consistent when you compare another case.
Net Margin Calculator gives you a repeatable way to check Revenue, Net profit. Change one meaningful assumption at a time so the effect stays clear.
Use Net Profit Calculator when the question is Gross profit, Operating expenses. The result is easier to review when the source of each input is recorded with the number.
Run Operating Margin Calculator before the next business decision when you need to see Revenue, Operating profit. Keep estimates separate from verified figures.
Profit Margin Calculator is built for the gap between revenue and modeled cost. Start with one real case and keep the period and definitions consistent when you compare another case.
Use Target Margin Pricing Calculator when the question is Unit cost, Target margin %, Buffer %. The result is easier to review when the source of each input is recorded…
Target Profit Calculator gives you a repeatable way to check Target profit, Profit margin. Change one meaningful assumption at a time so the effect stays clear.
Tell us what you are trying to build, what problem you are solving and where the digital part becomes difficult. Martzine is built around that gap. Start with the outcome and the constraint, then work back to the right digital layer.
