The Rule of 72 The most important and simple rule to financial success.

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The Rule of 72 The most important and simple rule to financial success.

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The Rule of 72 The most important and simple rule to financial success.

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The Rule of 72The most important and simple rule to financial success.

- The answers can be easily discovered by knowing the Rule of 72
- The time it will take an investment (or debt) to double in value at a given interest rate using compounding interest.

- How many years it will take an investment to double at a given interest rate using compounding interest.
- How long it will take debt to double if no payments are made.
- The interest rate an investment must earn to double within a specific time period.
- How many times money (or debt) will double in a specific time period.

The “Rule of 72”

- Is only an approximation
- The interest rate must remain constant
- The equation does not allow for additional payments to be made to the original amount
- Interest earned is reinvested
- Tax deductions are not included within the equation

- Invested $2,500
- Interest Rate is 6.5%

Doug invested $2,500 into a Certificate of Deposit earning a 6.5% interest rate. How long will it take Doug’s investment to double?

The average stock market return

since 1926 has been 11%

Therefore, every 6.5 years an individual’s investment in the stock market has doubled

- $2,200 balance on credit card
- 18% interest rate

Jessica has a $2,200 balance on her credit card with an 18% interest rate. If Jessica chooses to not make any payments and does not receive late charges, how long will it take for her balance to double?

- $6,000 balance on credit card
- 22% interest rate

- $5,000 to invest
- Wants investment to double in 4 years

Jacob currently has $5,000 to invest in a car after graduation in 4 years. What interest rate is required for him to double his investment?

- $3,000 to invest
- Wants investment to double in 10 years

Rhonda is 22 years old and would like to invest $2,500 into a U.S. Treasury Note earning 7.5% interest. How many times will Rhonda’s investment double before she withdraws it at age 70?

- $500 invested at age 18
- 7% interest
- How many times will investment double before age 65?

- The Rule of 72 can tell a person:
- How many years it will take an investment to double at a given interest rate using compounding interest;
- How long it will take debt to double if no payments are made;
- The interest rate an investment must earn to double within a specific time period;
- How many times money (or debt) will double in a specific time period.

- Things individuals must remember about the Rule of 72 include:
- Is only an approximation
- The interest rate must remain constant
- The equation does not allow for additional payments to be made to the original amount
- Interest earned is reinvested
- Tax deductions are not included within the equation