In: Finance
A store will give you a 4.75% discount on the cost of your purchase if you pay cash today. Otherwise, you will be billed the full price with payment due in 1 month. What is the implicit borrowing rate being paid by customers who choose to defer payment for the month? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.)
Annual effective rate is 79.38%
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Assume that the cost of purchase was $1oo. The discount of 4.75% will be available if the payment was made today.
Calculate the price paid today after receiving discount as follows:
Net amount paid = 100 – (100* 0.0475)
= 100 – 4.75
= 95.25
Monthly rate = Discount/ cost
= 4.75/ 95.25
= 0.049868 or 4.99% per month
Now we need to find the annual effective interest rate
Effective interest rate = (1 + i/m) ^m -1
Where,
Nominal interest rate (i) = 59.88% per year
Number of compounding in a year (m) = 12
Let's put all the values in the formula
Effective interest rate = (1 + 0.5988/12) ^12 - 1
= (1 + 0.0499) ^12 - 1
= (1.0499) ^12 - 1
= 1.7938 - 1
= 0.7938
So annual effective interest rate is 79.38% per year
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