Biaya operasional mengurangi hasil bersih.

Word by word:

• biaya = cost, expense
• operasional = operational, relating to operations
• mengurangi = reduce, decrease, lessen
• hasil = result, yield, return
• bersih = clean, pure, net

So hasil bersih here means something like net result, net return, or in many business contexts net income/profit depending on the wider context.

In Indonesian, modifiers often come after the noun they describe.

So:

• biaya operasional = operational costs
• literally: costs operational

This is very normal Indonesian word order.

Compare:

• rumah besar = big house
• laporan keuangan = financial report
• hasil bersih = net result

English usually puts adjectives before the noun, but Indonesian often puts them after.

Mengurangi means to reduce something or to decrease something.

It comes from the root kurang, which relates to being less or lacking. With affixes, it becomes a verb:

• kurang = less, lacking
• mengurangi = to reduce something

In this sentence, it is a transitive verb, meaning it takes an object:

• Biaya operasional mengurangi hasil bersih.
• Operational costs reduce net results.

So hasil bersih is the thing being reduced.

Because kurang by itself is usually not used as a main transitive verb meaning to reduce something.

Compare:

• kurang = less / insufficient / lacking
• mengurangi = to reduce something
• berkurang = to decrease, to become less

For example:

• Pengeluaran mengurangi keuntungan.
  Expenses reduce profit.
• Keuntungan berkurang.
  Profit decreases.

So in your sentence, mengurangi is used because biaya operasional actively reduces hasil bersih.

The basic word order here is:

• Subject + Verb + Object

So:

• Biaya operasional = subject
• mengurangi = verb
• hasil bersih = object

In other words:

• Operational costs → reduce → net result

Because mengurangi is an active verb, the noun phrase before it is normally the doer, and the noun phrase after it is what is affected.

It can mean either, depending on context.

Indonesian nouns usually do not have to show singular or plural explicitly. So:

• biaya operasional can mean operational cost or operational costs

In business language, it will often be understood as a general or collective idea, like operating expenses.

If someone really wants to make plurality very clear, they might use context, numbers, or sometimes reduplication, but that is not necessary here.

Hasil bersih means net result or net return. Depending on context, it may refer to the amount left after deductions.

It is similar to laba bersih, but not always identical:

• hasil bersih = net result / net yield / net return
• laba bersih = net profit

So laba bersih is more specifically about profit, while hasil bersih can be a bit broader.

In a business sentence, both may be possible, but they are not perfectly interchangeable in every context.

Indonesian does not usually use articles like English a, an, and the.

So:

• biaya operasional can mean operational costs, the operational costs, or an operational cost
• hasil bersih can mean net result, the net result, or net income/result

The exact meaning depends on context.

This is very common in Indonesian, so learners need to get used to relying on context instead of articles.

Yes, very possibly.

A natural English translation depends on the business context. Possible translations include:

• Operational costs reduce net results.
• Operating expenses reduce net income.
• Operating expenses reduce net profit.

The Indonesian sentence itself is slightly broad, so English may need a more specific business term depending on what the speaker means.

Yes, it sounds fairly neutral to formal, especially because of words like:

• biaya operasional
• hasil bersih

This kind of phrasing is common in business, accounting, finance, or reports.

In casual speech, someone might choose simpler or more everyday wording, but this sentence is perfectly normal in professional Indonesian.

You could use a passive form:

• Hasil bersih dikurangi oleh biaya operasional.

Here:

• dikurangi = is reduced
• oleh = by

However, Indonesian often prefers the active version when it sounds more natural and direct:

• Biaya operasional mengurangi hasil bersih.

So the original active sentence is usually the more natural choice unless you specifically want to emphasize hasil bersih.