contribution-margin
Skill1 starsChanged 22 days agoMITView on GitHub
Builds a contribution margin view when sales, mix and operating decisions require clear variable economics.
1 other project uses a version of this.
Adopted by
Most recently taken up by
- sidchaudhary/gtm-skillstheir own version, first seen Aug 21, 2026
Other versions1 project uses a version of this.
Word for word · 0
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None found.
Wrote their own version · 1
- sidchaudhary/gtm-skills★ 1same name
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The file
We split this skill into the rules it gives an agent
1 rule. About 0 are common, 1 is distinctive, and 0 are very specific to this project.
≈0
Common · estimate
Many files like this have a rule of this kind.
≈1
Distinctive · estimate
This author's own choices. Worth a look.
0
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Distinctive: line 9
Use for commercial planning, offer comparisons, capacity choices or investigation of profit dilution.
≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Files
Contribution Margin
When to use it
Use for commercial planning, offer comparisons, capacity choices or investigation of profit dilution.
What Claude needs
- Background from client-context.md
- Net revenue by offer and period
- Variable input, fulfilment, transaction and service costs
- Volume, mix, discounts, refunds and usage data
- Definitions used in existing management reports
Method
- Define the decision unit and contribution layers required.
- Reconcile net revenue after discounts, credits and refunds.
- Classify costs by whether they vary with the chosen unit and horizon.
- Calculate contribution per unit, per order and in total where relevant.
- Bridge changes into price, volume, mix, rate and efficiency effects.
- Identify negative or diluted contribution segments and their causes.
Output format
Provide a contribution statement, segment table and period bridge. State every inclusion, exclusion and cost-behaviour assumption.
Quality checks
- Revenue and costs reconcile to source totals.
- Fixed costs are not presented as unit-variable costs.
- Margin definitions remain consistent across comparisons.
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