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Maximize Ad Profits! Break Even with Our ROAS Calculator.

Boost Growth! Use our Profit Margin Calculator.

Simplify Ad Metrics: Free ACoS ↔ ROAS Calculators

MER tracks how well your marketing investments convert into sales.

It represents how much money your company is losing over time once revenue is factored in.

Elevate Your eCommerce Game with Free Tools!
Definition: Price smarter, protect your margins, and communicate profit targets clearly.
Instantly convert between margin and markup, calculate required prices from costs (or vice versa), and model realistic scenarios with fees, discounts, and returns.
Many teams use “margin” and “markup” interchangeably—but they are not the same. Using the wrong one can lead to undercutting profit targets, mispricing SKUs, and misaligned incentives between sales and finance.
Because price appears in the denominator for margin and cost appears in the denominator for markup, the two measures produce different percentages for the same transaction. A 50% margin corresponds to a 100% markup.
Given any two variables among Price (P), Cost (C), Margin (m), and Markup (u), you can compute the others:
This chart shows how markup grows faster than margin as targets increase.
| Margin % | Markup % | Price Multiplier (× Cost) | Cost Share of Price |
|---|---|---|---|
| 10% | 11.1% | 1.111× | 90.0% |
| 15% | 17.6% | 1.176× | 85.0% |
| 20% | 25.0% | 1.25× | 80.0% |
| 25% | 33.3% | 1.333× | 75.0% |
| 30% | 42.9% | 1.429× | 70.0% |
| 35% | 53.8% | 1.538× | 65.0% |
| 40% | 66.7% | 1.667× | 60.0% |
| 45% | 81.8% | 1.818× | 55.0% |
| 50% | 100.0% | 2.0× | 50.0% |
| 55% | 122.2% | 2.222× | 45.0% |
| 60% | 150.0% | 2.5× | 40.0% |
| 65% | 185.7% | 2.857× | 35.0% |
| 70% | 233.3% | 3.333× | 30.0% |
You want a standard 40% margin across a small catalog. Compute prices from cost, then confirm markup.
| SKU | Cost (C) | Target Margin (m) | Price (P = C / (1–m)) | Markup (u) | Check Margin |
|---|---|---|---|---|---|
| A | $12.00 | 40% | $20.00 | 66.7% | 40.0% |
| B | $35.00 | 40% | $58.33 | 66.7% | 40.0% |
| C | $58.00 | 40% | $96.67 | 66.7% | 40.0% |
To reflect reality, fold variable costs and expected losses into your calculations. Replace plain Cost with Landed Cost and replace Price with Net Revenue.
Example:
Net Revenue = 100 – 5 – (0.12×100) – (0.029×100) – 0.30 = 100 – 5 – 12 – 2.9 – 0.30 = $79.80
Expected returns cost = 0.08 × $6 = $0.48
Effective Margin (on price) = (79.80 – 50 – 0.48) / 100 = 29.32%
Equivalent Markup on landed cost = Profit / Landed Cost = (79.80 – 50 – 0.48) / 50 ≈ 0.5864 → 58.6%
When fees depend on price (percentage-based), solving for price is a little trickier.
Let:
C_L = Landed Cost (includes product + shipping/handling)
f_m = Marketplace fee rate (e.g., 0.12)
f_p = Payment fee rate (e.g., 0.029)
f_fix = Fixed fee per order (e.g., 0.30)
d = Discount per order
m* = Target margin on price (e.g., 0.35)
We want: (P – d – f_m·P – f_p·P – f_fix – C_L) / P = m*
⇒ P × (1 – f_m – f_p – m*) = C_L + f_fix + d
⇒ P = (C_L + f_fix + d) / (1 – f_m – f_p – m*)
Example: C_L=$50, f_m=0.12, f_p=0.029, f_fix=$0.30, d=$5, target m*=35%:
P = (50 + 0.30 + 5) / (1 – 0.12 – 0.029 – 0.35) = 55.30 / 0.501 = $110.38
If advertised prices include VAT/sales tax, treat tax as a pass-through that reduces Net Revenue.
For VAT rate t_v:
Net-of-VAT Price = P / (1 + t_v)
Apply margin calculations on net-of-VAT revenue.
Equivalent markup should be computed on cost vs net-of-VAT revenue.
Using markup when your dashboards and contracts expect margin (or vice versa).
Forgetting to include fees, discounts, and expected returns in margin planning.
Comparing pre-tax margins to post-tax results.
Assuming shipping pass-through is neutral—free shipping can erode margin quickly.
Bundles: not allocating cost and discount correctly across items.
Channel mix: margins differ by channel due to fees—avoid one-size-fits-all pricing.
| Given | Input | Compute | Formula | Result |
|---|---|---|---|---|
| Cost & Target Margin | C = $28, m = 45% | Price | P = C / (1 – m) | $50.91 |
| Price & Cost | P = $60, C = $36 | Margin & Markup | m = (P – C) / P ; u = (P – C) / C | m = 40%, u = 66.7% |
| Cost & Target Markup | C = $18, u = 80% | Price & Margin | P = C × (1 + u) ; m = u / (1 + u) | P = $32.40, m = 44.4% |
Finance typically plans in margin; sales often think in markup. Use margin for profitability planning and reporting; use markup pragmatically for price building from cost. Convert between them to stay aligned.
Because margin divides by price while markup divides by cost. With C=$40 and P=$80: margin=(80–40)/80=50%; markup=(80–40)/40=100%.
Percentage-based fees reduce the denominator available for margin. Use the price-solve formula above to set prices that preserve your target margin after fees and discounts.
Ready to price with precision? Use the Margin vs Markup Calculator now and convert targets into action.