A non-dependent customer obtained financing worth 975 JOD from Tamweelcom Company, with the financing being repaid over 18 months with a decreasing/annual interest rate of 21.684%, which is equivalent to a fixed/annual interest rate of 12%.
1. What is the total interest accrued on the financing?
Total interest value on financing = 175.50 JOD, plus 3% sales tax
The value of import stamps on the contract = 2 JOD
The value of the commission for granting one-time credit = 9.75 JOD, plus 3% sales tax
2. What is the value of the monthly installment that must be paid (principal, interest, and sales tax on the interest)
The value of the monthly installment for the first payment: 69,265 JOD
The value of the monthly installment for the remaining payments: 65.50 JOD, including the principal, interest, and sales tax on the interest.
3. How to calculate the effective interest rate (EIR) for the loan
The effective interest rate (EIR) = (1+IRR)12 - 1
The Internal rate of return (IRR) calculated using Microsoft Excel by using the equation of IRR:
Value field: enter all the cash flows (plus and minus)
Guess field: (represents the expected income): enter 0
IRR = 0.02812
Which represent the Monthly Effective rate
The effective interest rate (EIR) calculated by substitute the IRR in the following equation:
The effective interest rate (EIR) = (1+IRR)12 - 1
The effective interest rate (EIR) = 32.164%