Is an efficiency gain from reallocating spend realistic?

It depends on how much of your spend sits in channels that platforms credit for sales that would have happened anyway. A causal read on your GA4 export shows what each channel caused, so you can size the gain from your own data rather than from a benchmark.

What if I don't see these results?

A read costs €99, once, excluding VAT, and is refundable within 30 days, no questions asked.

eCommerce Growth Calculator: Project Revenue with Better Attribution

A calculator that projects revenue over the next 12 months from your monthly ad spend and monthly revenue, using the formula and assumptions shown on the page.

Three platforms, three answers, one budget to defend. Your GA4 export already holds the answer, and the first finding is free and never leaves your browser. Get your first finding free

By Joris van Huët, Founder & CEOUpdated 2026-10-061 min read

Run the numbers for your store: the free marketing ROI calculator.

What's Your True Growth Potential?

Incremental gains in marketing efficiency can lead to exponential growth in revenue. This calculator is designed to show you the tangible financial impact of moving to a causal attribution model. By reallocating budget from low-impact channels to high-impact ones, you can unlock a new level of growth without increasing your overall ad spend.

The Growth Formula

Our growth projection is based on a simple but powerful formula:

Projected Revenue Growth = (Current Ad Spend * Average Efficiency Gain) * (1 + Compounding Growth Rate)

Compounding Growth Rate: As you reinvest your efficiency gains back into high-performing channels, your growth begins to compound.

How to Calculate Your Potential

To use the calculator, you only need to input two numbers:

Current Monthly Ad Spend: How much are you currently spending on marketing each month?

Current Monthly Revenue: What is your current average monthly revenue?

Calculate Your Growth Potential

Blended ROAS Calculator: Your True Marketing Efficiency

Frequently asked questions

Is an efficiency gain from reallocating spend realistic?
It depends on how much of your spend sits in channels that platforms credit for sales that would have happened anyway. A causal read on your GA4 export shows what each channel caused, so you can size the gain from your own data rather than from a benchmark.
What if I don't see these results?
A read costs €99, once, excluding VAT, and is refundable within 30 days, no questions asked.

Go deeper: Causal attribution, explained.

Sixty-second versions of these ideas: Causality Engine on YouTube Shorts.

Have an audience of ecommerce operators? Earn 20% recurring commission by recommending the €99 read.

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