Business economics
Model unit economics, marketing efficiency, cash runway, dilution and e-commerce profit without confusing revenue with cash or profit.
Check profit marginQuick start
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Profit as a share of revenue.
Open →Units and revenue required to cover fixed cost.
Open →Attributed revenue per unit of ad spend with margin context.
Open →Acquisition cost and modeled gross-profit lifetime value.
Open →Available cash divided by monthly net burn.
Open →Returns, COGS, ads, fulfilment, platform fees and other costs.
Open →Keep markup and gross margin distinct.
Open →Gross burn versus net burn.
Open →Solve for target gross margin.
Open →Apply your own explicit multiple.
Open →Simple pre-money/post-money ownership math.
Open →Use the canonical UK VAT calculator.
Open →Key comparisons
How to read the result
Use precise definitions: gross margin is not net margin, ROAS is not profit, and accounting profit is not the same as cash runway.
Accuracy boundary
Business outputs are scenario models, not audited accounts or valuations. Shared VAT, loan and compound math are reused rather than reimplemented.
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