If you work in manufacturing or sales, you've probably heard things like:
"What's the gross profit on this product?"
"The gross profit is too low."
"We need to secure a bit more gross profit."
"Please check the gross profit margin."
These kinds of phrases come up all the time.
If you're new to the job, you might find yourself thinking,
"What exactly is gross profit?"
That's a natural question to have.
Gross profit is a term that comes up constantly when selling products or goods.
This article explains **"gross profit"**, including how it relates to cost price and selling price, in a way that's easy for beginners to follow.
What Is Gross Profit?
Put simply, gross profit is
the amount left over once you subtract the cost of a product from the amount it was sold for
.
The basic idea is expressed like this:
粗利 = 売価 − 原価
For example, say Product A is sold for 1,000 yen.
Product A's cost price was 700 yen.
売価：1,000円
原価：700円
In this case,
1,000円 − 700円 = 300円
the gross profit is 300 yen.
In other words,
out of the 1,000 yen the product sold for, 300 yen remained after subtracting the cost
.
This 300 yen is what we call gross profit.
The Relationship Between Cost Price, Selling Price, and Gross Profit
In a previous article, we covered cost price and selling price.
As a quick recap:
Cost price = the amount spent to prepare a product or item
Selling price = the amount charged to the customer
The difference between these two figures is gross profit.
原価：700円
↓
700円かけて商品を用意
売価：1,000円
↓
1,000円で販売
差額：300円
↓
粗利
In other words,
原価 + 粗利 = 売価
this is the relationship between them.
For example, given
原価：700円
粗利：300円
then
700円 + 300円 = 1,000円
the selling price is 1,000 yen.
Cost price, selling price, and gross profit are three separate terms, but they're very closely linked.
Is Gross Profit "Money the Company Keeps"?
If the gross profit is 300 yen, you might think,
"So the company made 300 yen in profit?"
That's a natural assumption.
Strictly speaking, though, that's not quite right.
For instance, running a company involves all kinds of costs, such as:
- Sales staff salaries
- Administrative staff salaries
- Office rent
- Communication costs
- Advertising costs
- System usage fees
and many others.
Say a product sells and generates 300 yen in gross profit.
粗利：300円
But this 300 yen still needs to cover the costs of running the company.
粗利
↓
給与
家賃
通信費
広告費
その他の費用
↓
最終的な利益
In other words, gross profit doesn't directly translate into the company's final profit.
Gross profit is a figure that shows
how much is left immediately after selling a product and subtracting its cost
— nothing more.
Why Is It Called "Gross" Profit?
"Gross profit" (粗利, arari) is shorthand for 粗利益 (ararieki), literally "rough profit."
It's called "rough" because not all expenses have been deducted yet.
For example,
売上：1,000円
↓
原価：700円を引く
↓
粗利：300円
at this stage, costs like rent and salaries haven't been subtracted yet.
So this isn't the final profit figure.
It's still a rough, early-stage profit figure, which is why it's called "gross profit."
In accounting terms, it's close to what's called gross profit on sales (売上総利益).
In everyday business, though, it's usually just called "gross profit" (粗利).
Products With High and Low Gross Profit
Let's say there are two products.
Product A has:
売価：1,000円
原価：700円
粗利：300円
Product B has:
売価：1,000円
原価：900円
粗利：100円
Both products sell for 1,000 yen.
But the gross profit is very different.
商品A：粗利300円
商品B：粗利100円
Selling one unit of Product A generates 300 yen in gross profit.
Selling one unit of Product B only generates 100 yen.
In other words, even with the same selling price, the gross profit that stays with the company can be very different.
That's why it's important to look at gross profit, not just sales revenue.
Higher Sales Don't Always Mean Higher Gross Profit
For example, say Product A sells 100 units.
売価：1,000円
販売数量：100個
The sales revenue is
1,000円 × 100個
=
100,000円
.
With a cost price of 700 yen,
700円 × 100個
=
70,000円
the total cost is 70,000 yen.
So we get:
売上：100,000円
原価：70,000円
粗利：30,000円
Now say the selling price is dropped to 800 yen and 200 units are sold instead.
800円 × 200個
=
160,000円
Sales revenue is now 160,000 yen.
That's more than before.
But if the cost price stays at 700 yen,
700円 × 200個
=
140,000円
the gross profit works out to
160,000円 − 140,000円
=
20,000円
Summarizing:
値下げ前
売上：100,000円
粗利：30,000円
値下げ後
売上：160,000円
粗利：20,000円
Sales revenue went up.
But gross profit actually went down.
This shows that increased sales revenue doesn't necessarily mean increased gross profit for the company.
If you only look at the fact that "sales went up," you can end up making the wrong call.
What Is Gross Profit Margin?
A term often used alongside gross profit is gross profit margin.
Gross profit margin is a figure showing
what percentage of the sales revenue remains as gross profit
.
The formula is:
粗利率 = 粗利 ÷ 売価 × 100
For example, given
売価：1,000円
原価：700円
粗利：300円
we get
300 ÷ 1,000 × 100
=
30%
a gross profit margin of 30%.
In other words,
30% of every 1,000 yen sold remains as gross profit
.
What's the Difference Between Gross Profit and Gross Profit Margin?
Gross profit is an "amount."
Gross profit margin is a "percentage."
For example, say
商品A
売価：1,000円
粗利：300円
粗利率：30%
for Product A.
Product B is:
商品B
売価：10,000円
粗利：2,000円
粗利率：20%
Looking only at the gross profit amount,
商品A：300円
商品B：2,000円
Product B looks bigger.
But looking at the gross profit margin,
商品A：30%
商品B：20%
Product A actually comes out higher.
In short,
Gross profit = how much is left from selling one unit
Gross profit margin = what proportion of sales revenue remains
Both figures matter, and which one matters more depends on what you're trying to evaluate.
What Happens to Gross Profit When Cost Rises?
For example, given
売価：1,000円
原価：700円
the gross profit is 300 yen.
But say material prices rise and the cost price increases to 800 yen.
売価：1,000円
原価：800円
Gross profit becomes
1,000円 − 800円
=
200円
.
If the cost price rises further to 900 yen,
粗利：100円
Summarizing:
原価700円 → 粗利300円
原価800円 → 粗利200円
原価900円 → 粗利100円
The selling price hasn't changed at all.
But as the cost price rises, gross profit shrinks.
So when the cost price goes up, companies may consider responses such as:
- Adjusting the selling price
- Reviewing the materials used
- Reviewing the manufacturing method
- Reviewing suppliers
and similar measures.
Cost management matters so much in manufacturing precisely because changes in cost feed directly into gross profit.
When Looking at Gross Profit, Pay Attention to "Which Cost Is Being Used"
In manufacturing, there isn't just one kind of cost.
For example, there's:
- Standard cost
- Actual cost
- Planned cost
and so on.
Suppose
売価：1,000円
標準原価：700円
実際原価：800円
is the case.
Calculating gross profit using the standard cost gives
1,000円 − 700円
=
300円
But calculating it using the actual cost gives
1,000円 − 800円
=
200円
Even for the same product, gross profit changes depending on which cost figure is used.
So at work, if someone asks,
"What's the gross profit on this product?"
it's important to confirm
"Which cost figure was used to calculate this gross profit?"
Summary
Gross profit is
the amount left over once you subtract the cost of a product or item from the amount it was sold for
.
The basic formula is:
粗利 = 売価 − 原価
For example, given
売価：1,000円
原価：700円
the result is
粗利：300円
In other words, it helps to remember it this way:
Selling price = how much you sell it for
Cost price = how much it cost to make
Gross profit = what's left after subtracting the cost from the sale price
That said, gross profit is not the company's final profit.
Out of gross profit, the company still has to pay for salaries, rent, advertising, and other operating expenses.
The next time the word "gross profit" comes up at work in manufacturing or sales, try asking yourself:
"What's the selling price?"
"What's the cost price?"
"Which cost figure is being used to calculate it?"
Asking these questions will make it much easier to understand what the gross profit figure is actually telling you.