In AP Business, margin is the difference between the price a business charges and its per-unit cost to make and deliver a product. It's the slice of each sale left over after costs, and it's why a price above per-unit cost is the floor for profitability.
Margin is the gap between what you charge and what it costs you. If a custom deck costs a contractor $3,000 in per-unit cost and they sell it for $4,500, the $1,500 in between is the margin. That's the money that can actually turn into profit once everything's paid for.
This ties straight to EK 2.5.A.2: businesses look at the per-unit cost of producing and distributing a product when they set a price, because a product isn't profitable if the price is equal to or below that cost. In other words, no margin, no profit. A low price can win you market share, but if it sits at or under per-unit cost, you're losing money on every sale. Margin is the thing that tells you whether your pricing strategy keeps the lights on.
Margin lives in Unit 2: Marketing, specifically Topic 2.5 Price. It supports learning objective AP Business 2.5.A (develop and evaluate a pricing strategy), because evaluating any price means checking whether it leaves enough room above per-unit cost to be profitable. It connects to 2.5.B too, since a business with strong pricing power can protect a bigger margin, while one in a cutthroat market gets its margin squeezed toward zero. Understanding margin is what lets you judge whether a pricing decision is smart or self-destructive, which is exactly what the exam asks you to do.
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Visual cheatsheet
view galleryMarkup (Unit 2)
Markup and margin are two views of the same gap. Markup adds a dollar amount or percentage on top of cost to set the price, while margin describes that same leftover slice as part of the final price. A contractor adding $1,500 to a $3,000 cost is using markup, and that $1,500 is the margin.
Break-even point (Unit 2)
Margin per unit is what chips away at fixed costs. The bigger the margin on each sale, the fewer units you need to sell before you cover everything and start making money, so a fat margin pulls your break-even point closer.
Pricing power (Unit 2)
Pricing power is the ability to raise prices without losing customers, and that ability is what protects margin. A differentiated product like a premium smartphone can hold a high price and a wide margin; a commodity in a crowded market gets its margin competed away.
Penetration pricing (Unit 2)
Penetration pricing is the deliberate choice to run a thin or even negative margin on purpose. A streaming service charging $3.99 against a $5.50 cost is sacrificing margin now to grab market share, planning to raise prices and recover that margin later.
Margin shows up as the logic behind pricing-strategy questions, not usually as a standalone vocab term. Expect MCQ stems that give you a per-unit cost and a price and ask you to identify the strategy or judge profitability. The construction-contractor example, building a deck for $3,000 in cost and wanting $1,500 profit per deck, is cost-based pricing, and that $1,500 is the margin you'd point to. You'll also see scenarios like a streaming service pricing below its $5.50 cost; recognize that as penetration pricing with a negative margin chosen on purpose. When you develop or evaluate a pricing strategy on the exam, always check the price against per-unit cost first, because that comparison is what tells you whether a margin even exists.
They describe the same gap from opposite directions. Markup is the amount you add ON TOP of cost to reach the price, measured against cost. Margin is that same gap measured as part of the price, the share of each sale left after cost. Add $1,500 to a $3,000 deck and the markup is 50% of cost; that same $1,500 is a 33% margin on the $4,500 price.
Margin is the difference between price and per-unit cost, the part of each sale that can become profit.
A product priced at or below per-unit cost has no margin and isn't profitable, even if it sells like crazy (EK 2.5.A.2).
Margin and markup describe the same gap, but markup measures it against cost while margin measures it against price.
Strong pricing power, from differentiation or weak competition, lets a business protect a wide margin.
Penetration pricing deliberately runs a thin or negative margin to win market share, then raises prices to recover it later.
A bigger per-unit margin lowers the break-even point because you cover fixed costs in fewer sales.
Margin is the gap between the price a business charges and its per-unit cost to make and deliver the product. It's the slice of each sale left over after costs, and it's where profit comes from. This connects directly to Topic 2.5 Price and learning objective AP Business 2.5.A.
No. They measure the same dollar gap but from different bases. Markup is the amount added on top of cost (measured against cost), while margin is that gap measured as a share of the final price. A $1,500 add-on to a $3,000 deck is a 50% markup but a 33% margin on the $4,500 price.
Yes. With penetration pricing, a business intentionally prices below per-unit cost to grab market share fast, accepting a loss now. A streaming service charging $3.99 against a $5.50 cost is doing exactly this, planning to raise prices once it has a big customer base.
Each unit's margin is what goes toward covering fixed costs. The bigger that margin, the fewer units you need to sell to break even, so a wider margin pulls your break-even point closer and a thin one pushes it further away.
Not necessarily. Margin depends on both price AND per-unit cost. A high price with high costs can leave a thin margin, while a moderate price with low costs can leave a fat one. Always compare price to per-unit cost, not just look at the price tag.
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