Gross Profit
Gross Profit % (also called gross margin) takes the same idea as Gross Profit but expresses it as a percentage instead of a dollar amount. "Net sales" is your sales revenue after subtracting things like customer refunds and discounts — in other words, the real money you actually keep from sales. COGS again is the direct cost of producing what you sold.
To calculate it, subtract COGS from net sales, divide that result by net sales, then multiply by 100 to turn it into a percentage. The result tells you what portion of every sales dollar is left after covering direct production costs. A high percentage (say 60%) means most of each sales dollar stays with you to cover other costs and profit. A low percentage (say 10%) means direct costs are eating up most of your revenue, leaving little cushion.
Project managers and business leaders love percentages because they let you compare projects, products, or time periods fairly, even when the dollar sizes are very different. A $1 million project and a $10,000 project can be compared side by side using this percentage.
Think of it like keeping score in percentages instead of raw points: saying "I kept 40 cents of every dollar" is easier to compare across different sales than saying "I kept $80,000," the same way a batting average lets you compare players who've had very different numbers of at-bats.
Suppose your project had net sales of $200,000 and COGS of $120,000. Gross Profit % = ($200,000 − $120,000) / $200,000 × 100 = $80,000 / $200,000 × 100 = 40%. This means that for every dollar you earn in sales, 40 cents is left after paying direct production costs — and that 40 cents must still cover overhead before any final profit.
Every PMP formula explained free — plus worked examples and practice in PMP Math, and full timed mocks in the simulator.