How the profit margin calculator works
This profit margin calculator takes two numbers (your revenue and your costs) and works out three things: gross profit in dollars, your margin as a percentage of revenue, and your markup as a percentage of cost.
The maths is straightforward. Gross profit is revenue minus cost. Margin divides that profit by revenue, so you can see how much of every dollar sold you actually keep. Markup divides the same profit by cost, showing how much you've added on top of what you paid.
The results update live as you type, so you can quickly test different price points or cost scenarios without having to reach for a spreadsheet.
Margin vs markup (the difference that trips people up)
Margin and markup are measuring the same profit from two different angles. Most people mix them up, and it can cost them money when setting prices.
Here's a worked example. You buy a product for $60 and sell it for $100.
- Gross profit = $100 - $60 = $40
- Margin = $40 / $100 = 40% (profit as a share of what the customer pays)
- Markup = $40 / $60 = 66.7% (profit as a share of what it cost you)
The profit is identical ($40), but the percentages look completely different. If your target is a 40% margin and you accidentally use 40% as your markup, you'll undercharge. You'd sell for $84 instead of $100 and leave $16 on the table on every sale.
A simple way to remember it: margin looks back from the sale, markup looks forward from the cost.
How to improve your margin
Most businesses focus on selling more when the easier lever is often keeping more of what they already sell. Three approaches that actually work:
- Raise prices selectively. Even a 5% price increase on your highest-volume lines can shift margin significantly. Test it on new quotes first. Most businesses are undercharging.
- Cut waste from delivery. Review every cost line that goes into delivering your product or service. Supplier negotiations, packaging, shipping terms. There's usually 3-8% hiding in there.
- Automate low-value labour out of delivery. If part of your cost of goods is staff time spent on repetitive tasks (data entry, chasing approvals, generating documents), that's time you can reclaim. See how the numbers change with our Automation ROI Calculator, or check what your time is actually worth with the Hourly Rate Calculator.
Margin improvement compounds. A business doing $500k/year with a 30% margin makes $150k. Push that to 38% through price discipline and leaner delivery and you've added $40k without a single extra sale.
If you want to look at where automation could reduce your delivery costs and lift your margin, book a free 30-minute call and we'll walk through the numbers with you.
