For Problems 611 assume you buy a ho for 30 years You pay a
Solution
Mortgage Loan Amount given is $150,000 and interest rate is 4.96%. The monthly mortgage payment for 30 year loan tenure will be given by formula:
Monthly Payment = Loan AMount * [ r * (1+r)t ] / [ (1+r)t - 1 ] ; where r is the monthly interest rate and t is tenure in months. Plugging in the values we get:
Monthly mortgage payment = 150000 * [ (4.96%/12) * (1 + 4.96%/12)360 ] / [ (1 + 4.96%/12)360 - 1 ] = 801.57
Now the total fees and other expenses paid are = 7825 + 1685 + 475 + 380 = 10365
Hence the net loan amount shall be (150000 - 10365) = 139635
Now the effective APR for this loan shall be the discount rate which will equate the monthly mortgage payments to the net loan amount, as below:
139635 = 801.57/(1+r) + 801.57/(1+r)2 + ....... + (801.57 - 380)/(1+r)360
We have added 380 back in the last term since it is only being deposited in the escrow and should be returned back once the loan is repaid. SOlving for r we get, r = 0.47% monthly or annualised 5.59%
