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L.4 · BEGINNER · 2 MIN

Costs of Production: Reading a Company's Margin Structure

Every business has fixed costs (rent, salaries) that stay the same regardless of output, and variable costs (materials, shipping) that rise with each unit sold.

Quiz · 5 questions ↓
§ 01
MSFT — Operating Margin, Net Margin, Revenue Growth. Open MSFT on the Ledge to see current values.
§ 02
Cost TypeExamplesImpact on Margins
Fixed costsRent, salaries, software licenses, R&DHigh fixed costs = operating leverage (margins expand with volume)
Variable costsMaterials, shipping, commissions, COGSHigh variable costs = margins stay flat regardless of volume
Semi-variableUtilities, overtime, cloud computingStep up at capacity thresholds
§ 03

Operating leverage is a double-edged sword. Software companies have high fixed costs and low variable costs, so profits soar when revenue grows. But in a downturn, those fixed costs do not shrink.

§ 04
Look at the **margin trends** for any company in the Financials section. Expanding margins with growing revenue signals operating leverage.
§ 05

Understanding a company's cost structure tells you how its profits will behave as revenue changes. High operating leverage amplifies both gains and losses.

§ 06
Company A has 80% gross margin, 20% operating margin. Company B has 40% gross margin, 20% operating margin. Same industry. Who has the better business?
Five questions · AI feedback

Sit with the ideas.

A SaaS company spends $20M on engineers (fixed) and $0.50 per user on cloud hosting (variable). It has 1 million users paying $10/month each. Revenue doubles to 2 million users. What happens to its profit margin?

Why:
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