I just need question number 3pls is away but still I don’t get it

SOLUTION
Given the question in the image, the following are the solution steps to answer the question.
STEP 1: Get the money in the bank account
[tex]\begin{gathered} From\text{ the question 1,} \\ savings\text{ after 4 years equals to the price of the car which is equal to \$6366.40} \end{gathered}[/tex]STEP 2: Calculate the amount of payment after taking 4 year loan
Using the chart, the amount to be paid will be:
[tex]152.18\times48=7304.64[/tex]STEP 3: Amount saved in interest will be:
[tex]7304.64-6366.40=938.24[/tex]Hence, the amount saved in interest will be $938.24