In: Finance
How many monthly payments remain to be paid on an 12% interest rate mortgage with monthly payments of $733.76, when the balance outstanding on the mortgage reaches $40,000?
We can find the answer using present value of annuity formula:
Where,
PVA = Present value of annuity
A = Annuity or payment
i = Monthly interest rate
n = Number of monthly payments
When mortgage interest rate is 12%, monthly interest rate (i) = 12% / 12 = 1%
Substituting the values, we get:
Now taking log on both sides, we get:
OR
.
If you want to do it in excel, refer the following:
Remaining Balance of loan | 40000 |
Mortgage rate | 12% |
Monthly rate | 1.00% |
Monthly payment | 733.76 |
Number of payments | 79 |
Excel formulas: