Understanding Compound Interest
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Questions and Answers

What is compound interest?

Compound interest is the interest added to the principal of an investment or a loan so that the added interest also earns interest.

What is compounding?

Compounding is when interest is added to the principal amount, and then the next interest calculation is made on the new principal (principal plus the interest earned).

What is the time interval between succeeding interest calculations called?

  • Compounding Period (correct)
  • Compound Frequency
  • Conversion Period
  • Interval Period

What is the number of compounding that takes place in a year called?

<p>Compound Frequency (A)</p> Signup and view all the answers

What is the nominal interest rate?

<p>The nominal interest rate is the annual interest rate on which the compound interest calculation is based.</p> Signup and view all the answers

What is the periodic interest rate?

<p>The periodic interest rate is the rate of interest earned in one conversion period.</p> Signup and view all the answers

How many times a year is interest compounded annually?

<p>1 (D)</p> Signup and view all the answers

How many times a year is interest compounded quarterly?

<p>4 (B)</p> Signup and view all the answers

How many times a year is interest compounded bimonthly?

<p>6 (A)</p> Signup and view all the answers

In the compound interest formula, what does MV stand for?

<p>Maturity Value</p> Signup and view all the answers

The ______ value is the initial amount invested or borrowed.

<p>present</p> Signup and view all the answers

The ______ value is the total amount received after the investment or loan period.

<p>maturity</p> Signup and view all the answers

What amount must be invested now in a savings account earning 6% compounded quarterly to accumulate a total of P25,000.00 after 4 years?

<p>P19,700.55</p> Signup and view all the answers

Ms. Carla Oliveros borrowed an amount 30 months ago at 14% compounded semi-annually. If the combined principal and interest is now P75,160.00, how much of that is the principal?

<p>P53,586.20</p> Signup and view all the answers

Ms. Sofia Traje paid P88,600.00 on a loan made 2 years before at 11.2% compounded bi-monthly. How much of that amount is the principal?

<p>P70,965.16</p> Signup and view all the answers

Flashcards

Compound Interest

Interest earned on both the principal and previously accumulated interest.

Conversion Period

The time interval between successive interest calculations.

Periodic Interest Rate

The interest rate applied to each conversion period.

Total Number of Conversion Periods (n)

The total number of conversion periods in the investment time frame.

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Nominal Interest Rate

The annual interest rate on which the compound interest calculation is based.

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Maturity Value (MV)

The value of an investment or loan at the end of the investment period.

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Present Value (PV)

The initial amount invested or borrowed.

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Compound Interest Formula

The formula used to calculate the maturity value of a compound interest investment.

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Present Value Formula

The formula used to calculate the present value of an investment with compound interest.

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Compound Interest (CI)

The total interest earned over the investment period.

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Annual Compounding

It describes compounding when interest is added once a year.

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Semi-annual Compounding

It describes compounding when interest is added twice a year.

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Quarterly Compounding

It describes compounding when interest is added four times a year.

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Monthly Compounding

It describes compounding when interest is added 12 times a year.

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Present Value

The amount that needs to be invested now to accumulate a specific future value.

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Importance of Compound Interest

Understanding the concepts of compound interest is crucial for making sound financial decisions.

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Time Value of Money

The time period over which interest accrues is a key factor in the total return on an investment.

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Compounding Frequency

The frequency of compounding affects the overall growth of an investment.

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Interest Rate Impact

Higher interest rates lead to greater growth in investments.

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Financial Planning

Compound interest plays a significant role in long-term financial planning.

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Exponential Growth

The compounding effect allows for exponential growth of investments over time.

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Building Wealth

Compound interest is a powerful tool for building wealth.

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Debt and Compound Interest

Compound interest, when applied to debt, can lead to a significant increase in the total amount owed.

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Financial Literacy

Understanding compound interest can help you make informed decisions about borrowing and lending.

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Economic Concept

Compound interest is a key concept in finance and economics.

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Exponential Growth through Compounding

Through compounding, the principal amount increases exponentially over time.

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Investment Strategies

Understanding compound interest allows you to make informed decisions about investment strategies.

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Personal Finance

Compound interest is a fundamental concept in personal finance.

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Study Notes

Compound Interest

  • Compound interest is interest calculated on both the principal amount and the accumulated interest from previous periods.
  • The principal amount is the initial amount of investment or loan.
  • Compounding involves adding the interest to the principal, so that the added interest also earns interest.

Objectives

  • Illustrate compound interest.
  • Calculate interest and present value in compound interest scenarios.
  • Solve word problems involving compound interest.
  • Conversion Period: The time interval between successive interest calculations.
  • Compounding Period: The time interval between succeeding interest calculations.
  • Interval Period: The same as the conversion period.
  • Compound Frequency: The number of compounding periods in a year.
  • Conversion Frequency: The same as compound frequency.
  • Nominal Interest: The annual interest rate used in the compound interest calculation.
  • Periodic Interest Rate: Interest earned during one conversion period.

Compounding Frequencies and Periods

Compounding or Conversion Frequency Number of Compounding or Conversions per Year
Annually 1
Semi-annually 2
Quarterly 4
Bimonthly 6
Monthly 12

Formula for Maturity Value (MV)

  • MV = PV (1 + i)n

  • Where:

    • MV = Maturity Value
    • PV = Present Value (Principal)
    • i = Interest rate per conversion period
    • n = Total number of conversion periods
    • j = Nominal interest rate per year
    • m = Number of conversion periods per year
    • t = Term (number of years)
  • i = j / m

  • n = mt

Formula for Present Value (PV)

  • PV = MV / (1 + i)n

Sample Problems and Solutions (Examples of Calculations)

  • Include detailed worked examples of calculating compound interest for various scenarios, including different interest rates, compounding periods, and timeframes. (Solutions provided in the document)

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Compound Interest PDF

Description

This quiz covers the fundamentals of compound interest, focusing on its definition, calculation methods, and practical applications. You will learn to illustrate, compute, and solve problems related to compound interest and its various terms such as conversion period and compounding frequency.

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