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Markup vs Margin: The Mix-Up That Quietly Eats Your Profit

October 25, 2026 by
Markup vs Margin: The Mix-Up That Quietly Eats Your Profit
Tail Stocks, Remie
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PetshopMBA · Lesson 05 · Pricing That Pays

You price every bag at 40% over cost. You plan the month around a 40% profit. Then the numbers come in and there is ₱22,857 less than you expected.

No one stole from the drawer. No supplier overcharged you. The money was never there, because a 40% markup and a 40% margin are two different things.

This lesson starts Module 2 of PetshopMBA, Pricing That Pays. Before you can set better prices, you need to measure profit the same way every time.

What Is the Difference Between Markup and Margin?

Both describe the same peso profit. They just divide it by different numbers.

📦

Markup

Profit Compared With Cost

How much you add on top of what the product cost you. Useful when you are setting a price from a supplier invoice.

₱200 profit on a ₱500 cost = 40% markup

🏷️

Margin

Profit Compared With Price

How much of every peso a customer pays stays with you as gross profit. This is the number your monthly results run on.

₱200 profit on a ₱700 price = 28.6% margin

The Key Insight

Your sales are counted in selling prices, so your profit plan has to be in margin. If you price with markup and plan with margin, your plan will always come out higher than reality.

The Two Formulas Side by Side

Same top line, different bottom line.

Markup
Markup
=
Price − Cost
÷
Cost
PriceSelling price. What the customer pays for one unit.
CostLanded cost. Supplier price plus delivery, fees and handling, as you worked out in Lesson 03.
Margin
Margin
=
Price − Cost
÷
Price
ProfitPrice − Cost. The peso profit on one unit. It is the same in both formulas.
PriceSelling price. Margin divides by this, which is why margin is always smaller than markup.

Read them together. Markup answers "how much did I add?" Margin answers "how much of each sale do I keep?" When you talk about your month, your gross profit or your targets, you want the second question.

See It in Pesos: Markup to Margin

The gap grows as your markup grows.

Common markups and the margin they really give

If your markup isYour margin is
20%16.7%
25%20.0%
33.3%25.0%
40%28.6%
50%33.3%
66.7%40.0%
100%50.0%

Margin = Markup ÷ (1 + Markup). Rounded to one decimal.

⚠️

The Plan

Monthly sales ₱200,000
Pricing rule 40% over cost
Margin assumed 40%
Expected gross profit ₱80,000
✅

The Reality

Monthly sales ₱200,000
Pricing rule 40% over cost
Real margin 28.6%
Actual gross profit ₱57,143

Same shop, same sales, same prices. The only difference is which number the owner divided by. The plan was ₱22,857 too optimistic, and that is money the owner may already have counted on for rent, salaries or the next stock order.

How to Switch Between Markup and Margin

Two short conversions you can do on a phone calculator.

Worked Example: Converting Both Ways
Markup you use today40%
Margin you want25%

Markup to margin: 0.40 ÷ (1 + 0.40) = 0.286, so 28.6%

Margin to markup: 0.25 ÷ (1 − 0.25) = 0.333, so 33.3%

So a 25% margin needs a markup of about 33.3%, not 25%

Markup needed for a 25% margin33.3%
If you only remember one thing: to get the margin you want, your markup always has to be bigger than that margin.

Where the Mix-Up Hides

Three habits that make the gap bigger without anyone noticing.

1

Pricing with markup, planning with margin

The classic. Prices go up 40% on cost, then the month is budgeted as if 40% of sales is profit.

2

Using the supplier price instead of landed cost

Leave out delivery and fees and both your markup and your margin look better than they are.

3

Mixing the two words when you compare

"Thirty percent" means very different prices depending on whether someone means markup or margin. Always ask which one.

Check Your Top Sellers This Week

Twenty minutes with your price list is enough.

🧾

Pull your top 10 items

Use your sales records or simply the items you reorder most often.

🚚

Write the landed cost

Supplier price plus your share of delivery and fees per unit.

🧮

Work out each margin

(Shelf price − Landed cost) ÷ Shelf price. Write it as a percentage.

🎯

Mark the surprises

Circle any item whose margin is much lower than you assumed. Lesson 06 shows how to reprice it.

Copy this: margin check for your top sellers

ItemLanded costShelf pricePeso profitMargin
____₱ ____₱ ____₱ ________ %
____₱ ____₱ ____₱ ________ %
____₱ ____₱ ____₱ ________ %

Margin = Peso profit ÷ Shelf price × 100.

Your Margin Starts With What You Pay

Pricing can only protect a margin that buying has already made possible.

Once you measure in margin, you see quickly that your landed cost decides most of the story. Scattered orders, several delivery fees and prices that change from supplier to supplier make that cost hard to pin down.

🐾

How Tail Stocks helps

A clearer landed cost on every restock

Tail Stocks is a B2B wholesale marketplace for Philippine pet businesses. You buy from multiple suppliers in one place at their own wholesale prices, with no markup, and check out with one order, one delivery and one payment.

With your buying in one place, your landed cost is easier to see, and so is your real margin.

Supplier wholesale prices No markup One order One delivery Tail Points cashback

Key Takeaways

Lesson 05 in Five Lines
  • Markup = (Price − Cost) ÷ Cost. Margin = (Price − Cost) ÷ Price.
  • The peso profit is the same. Margin is always the smaller percentage.
  • A 40% markup is only a 28.6% margin.
  • Plan your month, your targets and your gross profit in margin.
  • To hit a margin, your markup has to be higher than that margin.

Markup is a pricing shortcut. Margin is the truth about what each sale leaves you. Use both, but never mix them up when you plan.

Next lesson: how to set a price from your cost so you land on the exact margin you want.

Start every price from a clear cost

Buy from multiple pet suppliers in one place, at their own wholesale prices.

Create your Tail Stocks account
Previous lessonLesson 04: Gross Profit vs Net Profit
Next in PetshopMBALesson 06: How to Price From Cost Using a Target Margin
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Remie Villas
Founder, Tail Stocks


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