Many companies celebrate record sales while facing severe liquidity crises. The reason is that the traditional accounting income statement often hides variable expenses inside fixed lines, distorting the numbers. To protect the business's profitability, mastering contribution margin is the definitive step to understanding how much of each sale is really left over to pay for the fixed structure and generate net profit.

This guide, developed by Vispe Capital, presents a technical, actionable financial controlling roadmap to identify invisible costs, audit the product portfolio and put routines in place that protect cash flow.

What's inside

  • Mapping the hidden costs of a sale: identifying margin leaks such as split fees, receivables advance fees, subsidized shipping, reverse logistics, commissions and the impacts of Brazil's tax reform (split payment).
  • Unit calculation model: a structure that shows the practical difference between accounting gross margin and the real contribution margin per product.
  • Portfolio management matrix: criteria to classify SKUs as Cash Stars, Opportunity Generators, Revenue Illusions and Cash Drains.
  • A 4-step adjustment protocol: steps to fix high-volume, low-profitability products through price elasticity, cost engineering, a minimum margin floor and margin-based commissions.
  • Checklist and weekly scorecard: a practical controlling routine (Monday to Friday, biweekly and monthly) and metrics to track the margin of safety and the break-even point.

Who it's for

  • Partners, finance directors and managers of small and mid-sized companies who want to audit the business's real profitability.
  • Controlling and finance leaders who need to set operational guardrails and align sales incentives with cash health.

How to apply it in your company

Use the audit model to review the pricing of each line in your catalog, fixing high-turnover, low-margin items first. Then adopt the weekly controlling checklist to track the break-even point and block sales below the set minimum margin.