Gross margin is revenue minus the direct cost of goods or services delivered, expressed as a percentage of revenue. It is the share of every sales dollar that remains to cover overhead, salaries, and profit. Gross margin defines the maximum amount a business can ever spend on everything else, which is why most strategic decisions trace back to this single number.
Gross margin separates the cost of producing or delivering what you sell (cost of goods sold, or COGS) from everything else. For a product company, COGS is materials, factory labor, and freight. For a services business, COGS is the labor and direct cost of doing the work for a client. Gross margin tells you whether the core economics of the business work. Operating profit, net profit, and free cash flow all flow downstream from gross margin — improving gross margin by one percentage point flows directly to the bottom line. Most small businesses underestimate true COGS by leaving out things like merchant fees, returns, and direct labor benefits, which inflates apparent gross margin.
Gross Margin (%) = (Revenue − Cost of Goods Sold) ÷ Revenue × 100
Gross margin sets the ceiling on everything else. A business with 30% gross margin can never spend more than 30 cents of every sales dollar on people, rent, software, and marketing combined and still make money. A business at 70% gross margin has more than double the breathing room. When margins compress (because input costs rise, prices stay flat, or service mix shifts toward lower-margin work), every downstream decision gets harder — hiring, marketing, owner draws. Most small businesses that feel "profitable but broke" have a hidden gross margin problem.
Fynso tracks gross margin by service line, product, and customer segment — not just the company-wide number. The weekly brief surfaces the trend and breaks down what's moving it: input cost inflation, discount creep, customer mix shift, or labor productivity changes. When gross margin drops below your historical baseline, Fynso flags the specific cause rather than just the symptom, so the conversation moves from "profits are down" to "raw material costs are up 4 points and we should re-price the X service line."
Restaurants
A full-service restaurant runs roughly 30–35% gross margin (after food cost of 28–32% and direct labor). When food costs spike 4 points, the restaurant either re-prices the menu or watches a $1.2M revenue business drop $48K in annual gross profit. There is no other lever big enough to recover that amount in overhead alone.
Professional services
A consulting firm running 55% gross margin (after direct project labor and contractor costs) can comfortably support a partner team and an office. The same firm at 35% gross margin — which happens when project scope creeps without re-pricing — can't support its own cost structure for more than a few quarters.
Software / SaaS
A sub-$5M SaaS typically runs 70–80% gross margin after hosting, payment processing, and customer support costs. When usage-based costs (AI inference, third-party APIs) shift the mix, gross margin can drop 10 points fast — and because operating costs were sized for the original margin, the business gets squeezed before the next pricing change can take effect.
Get product updates and access to Fynso features built for appointment-based operators.