Rose L.

asked • 22d

Programming 3-7


Interest on a credit card’s unpaid balance is calculated using the average daily balance.

Suppose that netBalance is the balance shown in the bill, payment is the payment made, d1 is the number of days in the billing cycle, and d2 is the number of days payment is made before billing cycle.

Then, the average daily balance is:

averageDailyBalance = (netBalance * d1 – payment * d2) / d1

If the interest rate per month is, say, 0.0152, then the interest on the unpaid balance is:

interest = averageDailyBalance * 0.0152


Write a program that accepts as input netBalance, d1, payment, d2, and interest rate per month (interestRate).

The program outputs the interest.

Format your output to two decimal places.

1 Expert Answer


Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.


Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.