Interest Refund Calculations

The video tutorial explains the Rule of 78, a method for calculating the interest refund on an installment loan paid off early. It details how the rule is derived by summing the parts of interest accrued over a 12-month period, resulting in 78 parts. Two examples are provided to illustrate how to calculate the interest refund when a loan is paid off with remaining payments, using the derived fraction of parts over 78. The tutorial concludes with a practical application of the rule to determine the interest refund amount.

What is the primary purpose of the Rule of 78?

• To calculate the total interest on a loan

• To determine the refund of finance charge for an early loan payoff

• To set the interest rate for a loan

• To calculate monthly loan payments

How does interest accrue in the first month of a 12-month loan?

• On 12 parts of the principal

• On 6 parts of the principal

• On 78 parts of the principal

• On 1 part of the principal

What is the total number of parts when interest is summed over 12 months?

• 24 parts

• 144 parts

• 78 parts

• 12 parts

What happens to the interest parts as each month passes in a 12-month loan?

• They decrease

• They increase

• They remain the same

• They double

If a loan is paid off at the end of the 9th month, what is the refund fraction?

• 15/78

• 9/78

• 12/78

• 6/78

Why is the refund amount often smaller than expected when paying off a loan early?

• Because the interest rate increases

• Because the principal amount increases

• Because the loan term is extended

• Because the refund fraction is a small part of the total interest

In the example with five payments remaining, how many parts are left?

• 10 parts

• 15 parts

• 20 parts

• 5 parts

What is the refund fraction for a loan with five payments remaining?

• 10/78

• 5/78

• 15/78

• 20/78

How do you calculate the interest refund using the refund fraction?

• Multiply the refund fraction by the total interest

• Multiply the refund fraction by the total loan amount

• Divide the refund fraction by the total interest

• Add the refund fraction to the total interest

In the example with four payments remaining, what is the refund fraction?

• 15/78

• 20/78

• 5/78

• 10/78