glossary · human review pending
Compound interest
Interest calculated on principal and previously accumulated interest.
Safe next action: Open the related guide or calculator and inspect its assumptions. Open related page
Audience, steps, example, risks and evidence
Understand the reasoning
Compounding includes accumulated interest in later interest calculations. The number of periods, timing of additions and any deductions affect the path, so equal headline rates need not yield equal balances.
Worked learning example
₩1,000 at 10% annually compounded becomes ₩1,100 after year one and ₩1,210 after year two, before fees or tax.
Check your understanding
Where does the extra ₩10 over simple interest come from?
Show answer and explanation
It is 10% interest on the ₩100 earned in the first year.
Common mistake: The arithmetic assumes the entered rate persists and earned interest remains in the balance.
Examples are invented educational scenarios, not provider quotes, forecasts or tax rates.
Who this is for
People using the KR educational release who want to understand a money decision before contacting a provider.
Not for
This is not a personal recommendation, provider quote, eligibility decision, tax opinion or legal opinion.
Key concepts
- Compound interest
- assumptions
- limits
Steps
- Write down the values you know.
- Run the matching local calculator.
- Read the assumptions, limits and next action before deciding.
Worked example
₩1,000 at 10% annually compounded becomes ₩1,100 after year one and ₩1,210 after year two, before fees or tax.
Risks and limits
- The arithmetic assumes the entered rate persists and earned interest remains in the balance.
- Actual provider terms and future outcomes can differ.
- A missing fee, tax or timing assumption can materially change the result.
Scope: Initial educational scope: Republic of Korea (KR), KRW and English interface. Provider, tax and legal rules are not inferred.
Author: FinanceScanner educational content
Review: Automated structure checks only. Human financial and language review not completed. Listed sources are background references, not claim-by-claim approval.
Next review: 2027-02-28
Background sources — not claim-by-claim verification
Report a stale source or content error
glossary · human review pending
Fee drag
The reduction in an illustrated balance caused by fees and the lost compounding on those fees.
Safe next action: Open the related guide or calculator and inspect its assumptions. Open related page
Audience, steps, example, risks and evidence
Understand the reasoning
Fee drag includes both the immediate deduction and the growth that the deducted amount no longer earns. Compare equal assumptions with and without fees to see that cumulative effect.
Worked learning example
Remove an invented ₩10 fee today. At an assumed 10% return next period, the no-fee balance would also have earned ₩1 on that ₩10.
Check your understanding
Is the future gap necessarily limited to the original ₩10 fee?
Show answer and explanation
No. Under positive growth the lost growth can enlarge the gap.
Common mistake: Fees may still apply during losses; do not assume they disappear when returns are negative.
Examples are invented educational scenarios, not provider quotes, forecasts or tax rates.
Who this is for
People using the KR educational release who want to understand a money decision before contacting a provider.
Not for
This is not a personal recommendation, provider quote, eligibility decision, tax opinion or legal opinion.
Key concepts
- Fee drag
- assumptions
- limits
Steps
- Write down the values you know.
- Run the matching local calculator.
- Read the assumptions, limits and next action before deciding.
Worked example
Remove an invented ₩10 fee today. At an assumed 10% return next period, the no-fee balance would also have earned ₩1 on that ₩10.
Risks and limits
- Fees may still apply during losses; do not assume they disappear when returns are negative.
- Actual provider terms and future outcomes can differ.
- A missing fee, tax or timing assumption can materially change the result.
Scope: Initial educational scope: Republic of Korea (KR), KRW and English interface. Provider, tax and legal rules are not inferred.
Author: FinanceScanner educational content
Review: Automated structure checks only. Human financial and language review not completed. Listed sources are background references, not claim-by-claim approval.
Next review: 2027-02-28
Background sources — not claim-by-claim verification
Report a stale source or content error
glossary · human review pending
Market coverage
The share of a declared target market represented by verified data, including known exclusions.
Safe next action: Open the related guide or calculator and inspect its assumptions. Open related page
Audience, steps, example, risks and evidence
Understand the reasoning
A coverage percentage needs a declared denominator and inclusion rule. Missing market size must remain unknown; counting available records alone does not show how representative they are.
Worked learning example
If a declared target contains 20 eligible products and 5 are verified, coverage is 25%. With an unknown target size, 5 records cannot justify any percentage.
Check your understanding
What should appear when the denominator is not known?
Show answer and explanation
Unknown coverage, with the known record count and exclusions stated separately.
Common mistake: Do not relabel a small curated sample as the complete market.
Examples are invented educational scenarios, not provider quotes, forecasts or tax rates.
Who this is for
People using the KR educational release who want to understand a money decision before contacting a provider.
Not for
This is not a personal recommendation, provider quote, eligibility decision, tax opinion or legal opinion.
Key concepts
- Market coverage
- assumptions
- limits
Steps
- Write down the values you know.
- Run the matching local calculator.
- Read the assumptions, limits and next action before deciding.
Worked example
If a declared target contains 20 eligible products and 5 are verified, coverage is 25%. With an unknown target size, 5 records cannot justify any percentage.
Risks and limits
- Do not relabel a small curated sample as the complete market.
- Actual provider terms and future outcomes can differ.
- A missing fee, tax or timing assumption can materially change the result.
Scope: Initial educational scope: Republic of Korea (KR), KRW and English interface. Provider, tax and legal rules are not inferred.
Author: FinanceScanner educational content
Review: Automated structure checks only. Human financial and language review not completed. Listed sources are background references, not claim-by-claim approval.
Next review: 2027-02-28
Background sources — not claim-by-claim verification
Report a stale source or content error