Contribution Margin Analyser
Operator Series

Portfolio averages hide what unit-level analysis reveals.

Most operators look at portfolio averages and assume each unit contributes equally. They never do. This tool shows what becomes visible when you analyse a single unit in detail and compare it to your portfolio birdview. The point is not to judge the unit. It is to understand what your tech stack should be revealing automatically, every month, across every unit you operate.

Deficit Cash cow Deficit
🔭 Portfolio Birdview
Totals
Portfolio annual margin
€ —
— of revenue
🔬 Unit A
Unit A

Unit A and Unit B start with two contrasting property types, so you can see a real margin gap immediately. Change either to load different example figures, or edit any field directly with your own numbers.

%
%
%
These are the costs most operators forget to track but quietly eat margin every month.
This unit's annual margin
€ —
— for this unit / year
Show as % of revenue
🔬 Unit B
Unit B
%
%
%
These are the costs most operators forget to track but quietly eat margin every month.
This unit's annual margin
€ —
— for this unit / year
Show as % of revenue
Why Per-Unit Visibility Matters
Difference per unit / year
€ —
What comparing two unit types reveals
Monthly average
€ —
This difference spread across 12 months
Cost Composition

Same revenue, different cost layers: this is what portfolio averages flatten out.

Unit A
Unit B
📊 Cost-by-Cost Breakdown

The exact figures behind the chart and the summary above, line by line, in real currency.

Line item Unit A Unit B Difference
Annual revenue € — € —
OTA commission € — € —
Direct channel cost € — € —
Owner payout / rent € — € —
Cleaning € — € —
Local taxes € — € —
Hidden costs (total) € — € —
Contribution Margin € — € —
What this means for your operation

Your tech stack should reveal this automatically.

Running this analysis manually for one unit is useful. Running it for every unit in your portfolio, every month, is where the real commercial advantage lives. Most operators do not have this visibility because their systems were not designed to surface it. That is the gap between an operation that knows its numbers and one that hopes for the best.

The operators who build cost transparency into their tech stack make better decisions: which units to keep, which agreements to renegotiate, which channels to invest in, which costs to challenge. The ones who do not, find out too late.

Building that cost transparency into how you decide is the work I do with operators. If you want to talk it through: rbisschoff@gmail.com

Framework by Roger Bisschoff · First published 2026 · Part of the Operator Intelligence Suite
View the full suite →
Roger Bisschoff
Roger Bisschoff
Distribution and revenue consulting for short-term rental and serviced apartment operators

I look across an operator's whole commercial picture, revenue, distribution, guest experience, owner retention, tech stack, to find where the real growth opportunity is.

Map everything identify the opportunity quantify its value direct what to do first