Gross margin represents the percentage of total revenue that exceeds the cost of goods sold (COGS), measuring how much money a company retains from each dollar of sales before accounting for operating expenses. Calculated as (Revenue - COGS) / Revenue × 100, this metric reveals the fundamental profitability of a company's core business model and its pricing power in the market.
A company selling software subscriptions for $1 million annually with $200,000 in hosting and support costs has a gross margin of 80%. This means that for every dollar earned, 80 cents remains available to cover operating expenses like marketing, research, and administration. Higher gross margins generally indicate better unit economics and more sustainable business models, which is why SaaS companies with 70-90% gross margins often attract more investor interest than hardware manufacturers operating at 30-40%.
Why It Matters
Gross margin serves as a fundamental indicator of business quality and scalability for angel investors. Companies with high gross margins have more financial flexibility to invest in growth, weather economic downturns, and eventually achieve profitability. A startup with 25% gross margins needs to generate four times the revenue of a competitor with 75% gross margins to have the same amount left over for growth investments. This metric also reveals competitive positioning—consistently high gross margins often signal strong brand value, proprietary technology, or other defensible advantages that allow premium pricing.
Example
Consider two startups each generating $5 million in annual revenue. Company A, a consumer electronics manufacturer, has $4 million in COGS (components, assembly, shipping), yielding a 20% gross margin. Company B, a B2B software platform, has $750,000 in COGS (cloud infrastructure, customer success), yielding an 85% gross margin. Company A has $1 million remaining to cover its $2 million in operating expenses, losing $1 million annually. Company B has $4.25 million available for the same $2 million in operating expenses, generating $2.25 million in profit. This demonstrates why investors scrutinize gross margin when evaluating which companies can achieve sustainable profitability at scale.