Gross profit is the dollar amount that's left after you subtract the cost of making or buying what you sell from the revenue you collected. It's the raw material of business profitability: the actual cash available to fund marketing, pay employees, cover overhead, and generate returns for the business.
While gross margin tells you the percentage efficiency, gross profit tells you the absolute scale. A startup with 90% gross margin on $100K revenue has $90K of gross profit. Microsoft with 71% gross margin on $245B revenue has $175B of gross profit. Percentage is the same ballpark; scale is a different universe.
Gross Profit = Revenue - Cost of Goods Sold
That's it. No adjustments, no allocations, no normalization. Revenue minus the direct cost of delivering the product or service.
Marketing budgets are funded from gross profit, not revenue. If your company has $10M in revenue and $7M in gross profit, the maximum theoretical marketing budget is $7M (though obviously you need to cover other operating costs too). A company with $10M revenue and $3M gross profit has far less room for marketing investment.
This is why SaaS companies can afford higher marketing-to-revenue ratios (30-50% of revenue) while retailers operate at 5-15%. It's not about different philosophies. It's about gross profit dollars available.
Companies are increasingly valued on gross profit multiples rather than revenue multiples. A SaaS company at 80% gross margin might trade at 10x gross profit. A services company at 40% gross margin might trade at 5x gross profit. The market pays a premium for high-quality gross profit because more of each revenue dollar is available for reinvestment and profit.
Gross profit growth rate is a more honest metric than revenue growth. A company can grow revenue 30% by selling low-margin products or offering deep discounts, while gross profit only grows 10%. The revenue growth looks great in a press release; the gross profit growth reveals what's actually happening to the business.
| Company (2024) | Revenue | Gross Profit | Gross Margin |
|---|---|---|---|
| Microsoft | $245B | ~$175B | 71% |
| Apple | $391B | ~$181B | 46% |
| Shopify | $4.6B | ~$3.7B | 80% |
| Tesla | $81.5B | ~$30.7B | 38% |
| Walmart | $648B | ~$162B | 25% |
Walmart's gross profit is close to Apple's in absolute terms despite radically different margins. Scale can compensate for margin, but it requires enormous operational efficiency.
Most companies don't have a single gross profit. They have different margins across product lines, customer segments, and channels: