Free calculators
Five calculators, one statement
Break-even, contribution margin, payment fees, advertising efficiency and packaging EPR. Nothing to sign up for, nothing saved, and every formula the same one the product computes on real orders.
Break-even calculator
How many orders a month has to bring in before it covers what the month costs you.
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Contribution margin calculator
Three margins instead of one, because the goods, the order and the customer are three different questions.
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Payment fee calculator
What every gateway takes in a month, blended into the one rate that reaches your P&L.
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MER and POAS calculator
What your advertising returns measured against your own revenue and your own margin, not against what the platforms claim.
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Packaging EPR calculator
What the packaging on one parcel costs you in EPR fees, at your own scheme's rate.
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Profit margin calculator
Margin, markup and what one unit really contributes, with VAT handled the European way.
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Discount impact calculator
What a promotion takes out of one unit's contribution, and the extra volume it must bring just to stand still.
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Price increase calculator
What a higher price adds to one unit's contribution, and how much volume it could lose before it stops paying.
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Markup and margin calculator
The price a target margin needs, and the same euro read back as a markup so the two can never be confused.
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Pricing floor calculator
The lowest price a unit can carry before the sale makes the store poorer, one rung at a time.
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Wholesale price calculator
Two margins in one chain: what you charge a stockist, what they charge, and whether your own shop undercuts them.
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VAT calculator
The tax out of a shelf price or onto a net one, and the share of the gross it really represents.
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Net revenue calculator
The bridge from ticket price to the figure every cost percentage is measured against.
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Margin of safety calculator
How much of the month could disappear before it stops paying for itself, in orders, euros and days.
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Free shipping threshold calculator
The basket a free delivery offer has to reach before it pays for the shipping it gives away.
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Packaging cost calculator
What the box, the filler and the tape really cost per order once splits and waste are counted.
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Landed cost calculator
What a unit really costs to own once freight, duty, currency and shrinkage are on it.
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Stock coverage calculator
How many days the stock on hand will last, and whether that survives your supplier's lead time.
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Inventory turnover calculator
How many times a year your stock turns into sales, and how long a unit sits before it does.
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Reorder point calculator
The stock level that should trigger a purchase order, and how many units that order should be.
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Return cost calculator
The margin handed back, the parcel already shipped, the fee kept, the bench, the markdown.
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Chargeback cost calculator
What a dispute costs when you lose it, what it costs when you win, and what the mix costs a month.
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CAC payback calculator
Whether the first order pays for the customer, and how long it takes when it does not.
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Shopify plan calculator
What each plan costs at your own volume once the card rate is counted, and the volume where the next one up starts winning.
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Bundle margin calculator
What a bundle really contributes once the discount and the parcel it saves are both counted.
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Not a calculator
Spreadsheet templates
Six free CSVs with the columns nouz actually uses, for the months you would rather keep the workings.
Download them
Why they all look the same
Each one is a slice of the same P&L
Most calculators on the web are standalone: they answer one question with one formula and the answer sits nowhere. These five share a structure, because the questions do. Break-even is a question about contribution margin. Contribution margin is a question about what the goods, the parcel and the gateway took. Advertising efficiency is a question about the margin the ads have to come out of.
So every result here carries the line number it is on a nouz statement. CM2 is line 25 in this calculator, in the glossary, in the product and on a customer’s own P&L. If a figure has no line number it is because it is a ratio rather than a line, and the page says which two lines made it.
They are estimates, and every page says so where it matters. A calculator works from flat rates you type once. The product prices every single order from the cost rules that were in force on that order’s own date, which is a different and much slower kind of arithmetic.
What the numbers mean
- 14Net revenue
- What you sold, after returns and with VAT out. Every share on every calculator is measured against this.
- 19CM1
- Net revenue minus the goods. Does the product pay?
- 25CM2
- CM1 minus shipping, packing and payment fees. Does the order pay?
- 29CM3
- CM2 minus advertising. Does the customer pay?
- 33EBITDA
- CM3 minus rent, salaries and software. What is actually left.
Or stop typing them in every month
Connect your Shopify store, enter your costs once, and the same statement is rebuilt every night from your own orders and your own ad spend.