Answer:
$509
Step-by-step explanation:
First, we find the lump sum to pay under the bank terms. The interest rate is 0.5% monthly, which is equivalent to 6.2% annually.
The formula is:

Where:
- P = Present value
- i = interest rate
- n = number of compounding periods of the interest rate
- X = lump sum we need to find
Now, we simply plug the amounts into the formula:


Next, we find the value of the lump sum under the company's preferred terms:


Finally, we susbtract the two figures to find the difference:
